Free tools by Smart
Free tools that get the job done in your browser
Text, images, PDF, calculators and documents. Pick a tool and start straight away; your files stay on your device.
- 260 tools ready
- Free, no account
- Runs in your browser
Selected tools
Unit Converter
Convert length, weight, area, volume, temperature, speed and more. The result appears as you type.
ImagesImage Compressor
Reduce the file size of JPG, PNG and WebP images, up to 8 at a time, and compare before and after. Nothing is uploaded.
MarketingQR Code Generator
Create a free QR code for a link, text, Wi-Fi network or contact and download it as PNG or SVG. The code is static and never expires.
Number to Words: Write an Amount in Words
Type an amount in digits to get it in Arabic or English words, with the currency name, its fraction and a closing “only”.
Wrong Keyboard Language Fixer: Arabic ↔ English
Typed with the keyboard on the wrong language? Paste the text to get it back in Arabic or English without retyping.
Remove Arabic Diacritics: Arabic Text Cleaner
Remove diacritics, tatweel and extra spaces from any Arabic text, and unify alef and yeh forms if you want.
Arabic Numeral Converter: ١٢٣ to 123 and Back
Convert between 123, ١٢٣ and ۱۲۳ inside any text. Words and separators stay as they are unless you choose otherwise.
Word and Character Counter
Count the words, characters, sentences and paragraphs in any text, with reading and speaking time.
Compare Two Texts (Diff Checker)
Paste two versions of a text to see the added and removed words or lines, highlighted.
Text Cleaner: Remove Extra Spaces
Remove extra spaces and blank lines, and rejoin lines broken in text copied from a PDF or an email.
Sort a List and Remove Duplicates
Sort the lines of a list alphabetically or numerically, and remove repeated lines or see how often each repeats.
Invisible Character Detector and Remover
Reveal hidden characters in text, such as zero-width spaces and direction marks, and remove the ones you choose.
Find and Replace Text
Replace one word or several phrases in a text in one go, then copy or download the new text.
Extract Emails, Links and Numbers from Text
Paste any text to get lists of the email addresses, links and numbers in it, without repeats.
Compare Two Lists: Shared and Different Items
Paste two lists to see which items are in both and which are in only one of them.
Split Text into Parts
Split text by characters, words, or paragraphs, optionally keeping sentence boundaries.
Merge Texts and Lists
Join texts with separators, headings, or numbering, and copy each part or the whole result.
Change Letter Case
Convert English text between upper, lower, title, camel, snake, and kebab case.
Markdown Editor and HTML Preview
Write Markdown with a safe preview, Arabic text, and tables, then export Markdown or HTML.
Convert HTML to Plain Text
Extract text from pasted HTML, optionally keeping headings, lists, and links.
Create a Markdown Table
Build a table from pasted data and export Markdown, HTML, or TSV.
Count Repeated Words
Show repeated words and phrases and skip stop words. It does not score SEO quality.
Format a Plain-Text Email
Rewrap lines and format lists and quotes for a readable plain-text email.
Arabic Virtual Keyboard
Type Arabic with a mouse or touch when no Arabic keyboard is available, then copy or download it.
Manual Arabic Diacritics Editor
Add diacritics to the selected letter. It is an editor, not automatic vocalization.
Arabic Placeholder Text Generator
Generate Arabic paragraphs, headings, and lists from a fixed library for design tests.
Arabic Punctuation Formatter
Normalize Arabic commas, question marks, brackets, and surrounding spaces with rules you choose.
Arabic Name Transliteration
Suggest an editable Latin spelling from a stated table. It is not an official document spelling.
Arabic Text Encoding Repair
Read a text file as UTF-8 or Windows-1256 and preview the choice before export.
Citation Formatter
Fill source details and format them in a stated citation style. It does not verify the source exists.
SRT and VTT Subtitle Editor
Show cues, edit times, shift timing, or convert between SRT and VTT.
Text Template and Variable Editor
Fill a message from variables such as name and company, and generate results from a local table.
Image Compressor
Reduce the file size of JPG, PNG and WebP images, up to 8 at a time, and compare before and after. Nothing is uploaded.
Resize and Crop an Image
Change an image’s width and height in pixels or by percentage, crop, rotate or flip it, then download it as JPG, PNG or WebP.
Image Converter: JPG, PNG, WebP
Convert images between JPG, PNG and WebP, up to 8 at a time, with a quality setting and a background colour in place of transparency.
Compress Image to a Target Size in KB
Reduce an image to under 50, 100 or 200 KB, or any size you enter, with optional maximum dimensions for forms and portals.
Remove EXIF Data and Location from Photos
See the GPS location and EXIF data hidden in a photo, then download a clean copy with the picture quality untouched.
Annotate Images: Text, Arrows and Numbers
Write on a picture or screenshot, add arrows, numbers and rectangles to point things out, then download it.
Favicon Generator
Turn your logo into a favicon.ico and PNG icons in every size, with a manifest file and ready HTML lines.
Image Information Viewer
Show format, dimensions, size, transparency, and available EXIF without uploading the file.
Image Watermark Generator
Place Arabic text or a logo, tiled or once, with opacity and position you choose.
Image Privacy Redaction
Cover regions you select with a solid color and export a redacted image.
Image Merger and Collage Maker
Make a long image or a grid, with spacing, background, and order controls.
Image Splitter
Cut an image into a grid or slices at set dimensions and download the parts together.
EXIF Image Orientation Fixer
Fix photos whose display orientation differs between apps and save a copy with a fixed orientation.
Basic Image Adjustments
Adjust brightness, contrast, and saturation, or convert to gray, with a before-and-after preview.
Thumbnail Template Generator
Create an article or video image from a photo, a title, and fixed Arabic or English templates.
Photo Print Sheet Maker
Arrange copies of a photo on A4 at sizes you enter, with optional margins and crop marks.
Image Comparison
View two images side by side or with a slider, and compare dimensions and size. It is a visual check, not an authenticity verdict.
SVG to Image Converter
Preview a sanitized local SVG, then export PNG or WebP at dimensions you choose.
Merge PDF Files
Choose PDF files, put them in order and download one merged PDF. Free, with nothing uploaded.
Split PDF and Extract Pages
Pull chosen pages into a new PDF or split the file into several. Free, with nothing uploaded.
Images to PDF
Turn JPG and PNG images into one PDF, one image per page. Free, with nothing uploaded.
Reorder, Rotate and Delete PDF Pages
Reorder, delete, rotate or duplicate the pages of a PDF, then download a new file. Free, with nothing uploaded.
PDF Pages to Images
Export selected pages to PNG or JPG at a chosen resolution, with a page limit.
PDF Page Numbering
Add page numbers, a date, or a prefix in positions you choose, with an optional cover exception.
PDF Watermark
Place text or an image on selected pages, with opacity, angle, and size controls.
PDF Header and Footer
Add a company name, title, or reference, with a preview that avoids covering important content.
PDF Information Viewer
Show page count, page sizes, metadata, and properties that can be read locally.
PDF Cover and Divider Pages
Generate a cover and divider pages with Arabic or English titles and merge them into the file.
Multiple PDF Pages per Sheet
Place several reduced pages on one sheet, or repeat a page, to use fewer sheets.
PDF Text Extractor
Extract text that already exists in the file. It does not read scanned images or guarantee table order.
PDF Form Filler
Read supported form fields, fill them, and download the copy, with the supported field types stated.
Visual PDF Signature
Draw a signature or place its image at a chosen position. It is visual, not a digital certificate.
PDF Form Flattening
Turn supported form fields into fixed content. It does not prevent every later edit of the file.
Scanned PDF Size Reducer
Rebuild scanned pages at a lower resolution and quality. Searchable text may be lost, and not every file shrinks.
Colour Contrast Checker
Enter a text colour and a background colour to see the contrast ratio and whether it passes the WCAG levels.
HEX, RGB and HSL Colour Converter
Type a colour in any format or pick one, then copy it as HEX, RGB or HSL.
Print Size and DPI Calculator
Convert a print size between millimetres, centimetres, inches and pixels at the DPI you set.
Aspect Ratio Calculator
Find the aspect ratio of an image or video, or work out a missing width or height from a ratio such as 16:9.
Image Color Picker
Pick a color from a point in a local image and show prominent colors from it.
Color Palette Generator
Build coordinated palettes from a base color, with export formats for design and code.
Gradient Generator
Build a linear or radial gradient, control stops and direction, then copy CSS or download an image.
Light and Dark Theme Color Preview
Try brand colors on a card, buttons, and fields in both themes, with contrast indicators.
Arabic and English Font Preview
Compare licensed or local fonts on headings, paragraphs, and numbers before choosing one.
Print Bleed and Margin Calculator
Calculate the final design size with bleed and safety margins you set for print.
CSS Shadow and Border Generator
Preview a shadow, rounded corners, and a border, then export the values as one snippet.
CSS Grid and Flexbox Generator
Set rows, columns, alignment, and gaps visually, then copy a small HTML and CSS example.
Fluid Typography Calculator
Calculate heading and paragraph scales and CSS clamp values between two screen widths.
SVG Pattern Generator
Create dots, grids, lines, and geometric shapes you can recolor and download.
Print Sheet Layout Calculator
Calculate how many cards or labels fit on a sheet, with margins and gaps.
Visual Asset Requirements Checker
Compare an image or logo with width, height, and transparency requirements you provide.
Placeholder Image Generator
Create placeholder images at a size, color, and label you set for page tests.
Arabic Font Coverage Checker
Check a local font for Arabic letters, digits, and diacritics, with a display sample.
Brand Colors and Fonts Reference Sheet
Enter colors, fonts, and a logo to produce a printable brand reference sheet.
Free Invoice Generator
Fill in an invoice with items, discount and tax, then print it or save it as a PDF. It is a printable document, not a registered e-invoice.
Free Quotation Generator
Fill in a quotation with items, a validity date and payment terms, then print it or save it as a PDF for your customer.
Payment Receipt Generator
Enter the payer, the amount and what it is for, and get a receipt with the amount in digits and words, ready to print or save as a PDF.
Delivery Note Generator
Create an item list with quantities and signature spaces for a delivery.
Purchase Order Generator
Generate a purchase order from items, quantities, dates, and terms you enter.
Expense Voucher Generator
Prepare an expense voucher with an amount, reason, text references, and approval space.
Customer Statement Generator
Enter charges and payments locally to produce a balance statement. It is not an accounting system.
Business Letter Templates
Fill fixed templates such as a quote request or payment follow-up, and edit the whole letter.
Internal Memo Generator
Prepare a memo with a title, sender, recipients, action points, and a date.
Printable Business Card Maker
Fill details and a logo into a small set of Arabic or bilingual card templates.
Event Badge Generator
Create badges from typed names or a local CSV, with a paper and badge size you set.
Attendance Certificate Generator
Fill a certificate from a name, course, and date, including a small batch from a local table.
Product and Address Label Maker
Arrange names, prices, addresses, or codes on a label sheet at dimensions you choose.
Envelope Address Printer
Place sender and recipient details on common envelope sizes, with a position preview.
Inventory Count Sheet Generator
Create a count sheet with names, codes, expected quantity, actual quantity, and the difference.
Return Note Generator
Prepare a note of returned items, quantities, reasons, and the original reference, without posting accounts.
One Page Work Report
Turn details you enter into a one-page status or weekly report from a fixed template.
Statement of Work Summary
Fill the goal, outputs, limits, duration, and acceptance criteria in a printable template.
Attendance and Work Hours Calculator
Enter clock-in, clock-out, and breaks, including overnight shifts, and calculate net hours.
Decimal Hours Converter
Convert between 7:30 and 7.5 hours in both directions, including a list and its total.
Printable Shift Planner
Assign names to weekly or monthly shifts manually, and flag overlaps from rules you enter.
Small Team Leave Planner
Record planned leave locally and show overlap and availability, without a leave-system integration.
Custom Overtime Pay Calculator
Calculate overtime from a multiplier and hourly pay you enter. No legal rate is assumed.
Job Offer Comparison
Compare salary, allowances, benefits, and commute costs on a monthly and yearly basis.
Employee Turnover Calculator
Calculate the rate from starting staff, ending staff, and leavers, with the definition shown.
Weighted Evaluation Calculator
Enter criteria, weights, and scores, calculate the result, and check that the weights add up.
Team Skills Matrix
Enter skill levels, compare them with a target, and export the training gaps.
Employee Onboarding Checklist
Choose and edit onboarding tasks, with an owner and a deadline for each task.
Candidate Criteria Comparison
Score a small group manually against stated criteria and weights, without a prediction or hiring decision.
Small Organization Chart Builder
Enter names, roles, and manager links to produce a printable chart or image, without sharing team data.
Unit Converter
Convert length, weight, area, volume, temperature, speed and more. The result appears as you type.
VAT Calculator
Add VAT to an amount, or take it out of a tax-inclusive amount, at the rate you enter.
Profit Margin Calculator
Work out profit margin and markup, or find the selling price or the cost from a percentage you know.
Discount Calculator
Find the price after a discount and what you save, or work back to the discount rate or the original price.
Percentage Calculator
Find a percentage of a number, what percentage one number is of another, or the percentage change between two values.
Product Pricing Calculator
Add purchase, shipping, packaging, and fee costs to reach a target price and estimated margin.
Break-Even Calculator
Estimate the units or revenue needed to cover fixed and variable costs you enter.
Payment Processing Fee Calculator
Calculate fees, net received, or the amount to charge from a rate and fixed fee you enter.
ROI Calculator
Calculate simple return from a cost and a gain, showing what was treated as profit or revenue.
ROAS Calculator
Calculate attributed revenue against ad spend, with an optional margin.
Customer Acquisition Cost Calculator
Divide an acquisition cost you enter by the number of new customers in a stated period.
Average Order Value Calculator
Calculate average order value from revenue and order count, and compare two periods.
Successive Discount Calculator
Apply several discounts in order and show the effective discount instead of adding the rates.
Interest Free Payment Schedule
Split a total into a down payment and installments, putting the rounding difference on the last payment.
Subscription Cost Calculator
Add monthly and yearly subscriptions and show one monthly and yearly cost.
Weighted Amount Splitter
Split an amount equally, by weights, or by percentages, and distribute rounding differences.
Supplier Quote Comparison
Compare quotes that differ in unit, quantity, discount, and shipping on one cost basis.
Work Time Cost Calculator
Turn hours, an hourly cost, and extra expenses into an estimated task cost.
Manual Exchange Rate Calculator
Convert currency at a rate you type, with direction and commission, without live rates.
Data Size Converter
Convert bits, bytes, kB, and KiB, and distinguish decimal from binary units.
File Transfer Time Calculator
Estimate upload or download time from file size, connection speed, and an efficiency factor.
Screen PPI Calculator
Calculate pixel density and screen size from resolution and diagonal, and compare two screens.
Paper Size Comparison
Compare A, B, Letter, Legal, and custom sizes, and see whether they fit for printing.
Scale Drawing Calculator
Convert a real measurement and a drawing measurement at a scale, with consistent units.
Area and Volume Calculator
Calculate area, perimeter, and volume of common shapes from measurements you enter.
Fraction and Ratio Calculator
Add, subtract, multiply, divide, and simplify fractions, or convert them to a ratio or decimal.
Number List Statistics
Show sum, mean, median, mode, and spread for a list of numbers, with the method used.
Proportion Calculator
Solve a direct or inverse proportion from three values and show the relationship and units.
Rounding and Significant Figures
Round a number or a list by decimal places or significant figures, and state the rule.
Random Name Picker and Group Generator
Pick names at random or assign groups. It is not a certified official draw.
Unit Price Comparison
Normalize package weight or volume and price to compare the unit cost.
Trip Fuel Cost Calculator
Estimate fuel and cost from distance, consumption, and a price per litre, with an optional split.
Appliance Energy Cost Calculator
Estimate kilowatt-hours and cost from appliance power, hours, and a tariff you enter.
Shipping Volumetric Weight Calculator
Calculate volumetric weight from dimensions and a divisor, and compare it with actual weight.
Simple Customer Lifetime Value Calculator
Estimate customer value from average purchase, frequency, duration, and margin, showing the assumptions.
Currency Converter with Published Rates
Use cached periodic data from a suitable provider, and show the source, update time, and usage limits.
CSV File Viewer
Open a CSV file as a table you can search and sort. Free, with nothing uploaded.
Remove Duplicate Rows
Paste a table or a list to get the rows without duplicates and a count of what was removed. Free, with nothing uploaded.
Phone Number Cleaner and Formatter
Paste a list of phone numbers to get them in one international format, without spaces or repeats. Free, with nothing uploaded.
CSV Cleaner
Remove empty rows, trim spaces, and normalize headings, with a preview of the changes.
CSV File Merger
Combine files with compatible columns and handle different order and headings before download.
CSV File Comparison
Show new, removed, and changed records using a key you choose.
CSV File Splitter
Split a file by row count or by a column value such as city or category.
CSV and JSON Converter
Convert either way, map columns, and choose how nested values are handled.
CSV and TSV Converter
Change delimiters, quotes, and line endings while keeping values that contain separators.
Table Column Reshaping
Choose, rename, and reorder columns, or transpose rows and columns within a limited range.
Email Address List Cleaner
Trim spaces and find duplicates and shape errors. It does not prove an address exists or can be delivered.
Table Join by Key
Add columns from one table to another by a shared column, and show unmatched rows.
XLSX Sheet to CSV
Read XLSX sheets locally and export one sheet as values. Macros are not run and formulas are not guaranteed.
CSV to XLSX
Produce a spreadsheet with column names and types you review, and stop text from being treated as formulas.
Table Date Format Normalizer
Read stated date formats, convert them to one format, and ask you to resolve ambiguous values such as 03/04.
Table Data Masking
Replace selected columns with masked values or local identifiers before sharing a copy.
Data Quality Report
Count blanks, duplicates, type distribution, and outliers using rules you set.
Small Table Statistics and Charts
Choose numeric and category columns to show a sum, average, distribution, and a downloadable chart.
Import Template Mapper
Map file columns to a required template, check required fields, and export the prepared file.
Sample Data Generator
Create fictional names, addresses, identifiers, and values from limited schemas for interface tests.
JSON Formatter and Validator
Paste JSON to format or minify it, and see exactly where an error is, by line and column, with the reason.
JSON Comparison
Show differences in values, keys, and arrays, with options to ignore order or specific fields.
YAML and JSON Converter
Convert between the two formats, restrict unsafe types, and explain formatting that is not preserved.
SQL Formatter
Format a query for a dialect you choose, with highlighting. It does not connect to a database or run the query.
Base64 Encoder and Decoder
Encode or decode a text or small file as Base64, with UTF-8 and input validation.
URL Encoder and Decoder
Encode or decode URL parts, and distinguish path encoding from query encoding.
HTML Entity Encoder and Decoder
Convert between characters and the entities used inside HTML.
URL Parser
Split a URL into protocol, host, path, parameters, and fragment, and report structural errors.
Query String Builder
Add, edit, and encode link parameters, and choose how repeated values are represented.
HTTP Request Code Builder
Set a method, headers, and body, then generate curl and fetch examples. It does not send the request.
ENV to JSON Converter
Read setting pairs and export them, keeping text values and explaining ENV format differences.
ENV Key Comparison
Find missing, extra, and duplicate keys between two files, with values hidden by default.
CSS Unit Converter
Convert px, rem, em, and vw using a font size and container size you set.
String Escape Converter
Show or generate escape sequences for text and Unicode, for an output language you choose.
Number Base Converter
Convert binary, decimal, hexadecimal, and other bases, including large integers.
Gitignore Generator
Choose languages, frameworks, and tools from stated templates and produce an editable ignore file.
JSON Schema Validator
Test a JSON document against a schema you provide and show the fields that do not match, locally.
JSONPath Explorer
Try JSONPath queries on a local document and extract results, with no API connection.
XML and JSON Converter
Convert structure with options for attributes and repeated values. It does not promise identical conversion for every XML file.
Regex Tester
Try a pattern on text and show matches and groups in a separate worker you can stop.
Cron Generator and Preview
Build a cron expression and preview the next runs for a stated dialect and zone, without scheduling anything.
HTML CSS and JavaScript Formatter
Format pasted code locally and show parse errors, without running JavaScript or loading resources.
Web File Minifier
Minify HTML, CSS, and JavaScript with reviewed libraries and show the savings, without executing the code.
TypeScript Interfaces from JSON
Infer a draft of types from a JSON sample, and state that it depends on the sample and needs review.
QR Code Generator
Create a free QR code for a link, text, Wi-Fi network or contact and download it as PNG or SVG. The code is static and never expires.
WhatsApp Link Generator
Type a phone number and an optional ready-made message, then copy a wa.me link that opens the chat without saving the number.
Email Signature Generator
Enter your name, job title and contact details, then copy a formatted signature to paste straight into Gmail or Outlook.
QR Code Reader
Read a code locally and show its contents before opening anything. The camera is requested only when used.
UTM Link Builder
Add campaign parameters to a link and copy the result, with consistent naming rules.
vCard Contact File Generator
Generate a VCF contact file with a person, company, and links, without hosting a page.
Campaign Naming Builder
Build a campaign name from platform, country, goal, and date, with a template saved locally.
Campaign URL Analyzer
Read UTM links, flag missing parameters or inconsistent names, and export a short report.
Open Graph Image Generator
Produce a sharing image from a title, logo, color, and a fixed template, including Arabic.
Advertising Metrics Calculator
Calculate CTR, CPC, CPM, CPA, and conversion rate from numbers you enter, with each metric defined.
Campaign Budget Goal Calculator
Estimate clicks and customers from a budget, cost per click, and an assumed conversion, with scenarios.
Exportable Content Calendar
Enter ideas, platforms, and dates in a local calendar, then export CSV or print it. Nothing is published.
Simple Customer Journey Map
Fill journey stages, touchpoints, problems, and actions on one printable board.
Campaign Results Comparison
Enter spend, impressions, clicks, and conversions for two periods and show the change, without ad accounts.
Barcode Generator
Generate supported barcode formats, check lengths and check digits, and state commercial-use limits.
Simple AB Test Calculator
Compare conversion rates with a stated statistical model and show sample size and assumptions, without a business promise.
Search Snippet Preview
Enter a title, description, and URL for an approximate phone and desktop preview. It is not a guarantee of Google’s display.
Social Meta Tag Generator
Prepare sharing tags from a form and copy HTML, with a check of the basic fields.
Robots TXT Generator
Build crawler rules from a form, explain each rule, and preview the file before download.
XML Sitemap Generator
Turn a list of URLs you provide into XML. It does not crawl the site.
Local Sitemap Validator
Check XML, links, duplicates, and dates from a local file, without claiming the URLs work.
URL Slug Generator
Turn a title into an Arabic or Latin slug, with separator and letter rules and manual editing.
URL List Structure Checker
Find duplicate URLs, case differences, trailing slashes, and query differences without a network request.
Page Performance Budget Calculator
Add image, font, and script sizes and compare them with a size budget. It does not measure Core Web Vitals.
Robots TXT Rule Tester
Paste a robots file and paths to test allow and disallow with a stated rule engine, without fetching the site.
Hreflang Generator
Build language and region links and x-default from a page table, and check reciprocity in the data you entered.
Schema JSON LD Generator
Prepare Organization, Article, and Product examples and export structured data you can review.
Structured Data Code Checker
Extract pasted JSON-LD and check structure and fields against stated rules. It does not guarantee rich-result eligibility.
SEO Analysis from Pasted HTML
Analyze title, description, canonical, headings, links, and images in HTML you paste. It does not fetch the site.
URL Redirect Mapping Planner
Turn old and new URLs into a redirect map or a draft of Apache rules you can review.
Local Internal Link Consistency Checker
Compare links extracted from local HTML with a known page list and find references missing from that list.
Website Content Map Planner
Arrange pages, topics, search intents, and main links in a local table to see overlap and gaps.
Date Difference Calculator
Show the difference in days, weeks, or months, including whether the end day counts.
Add and Subtract from Date
Find a date after days, weeks, or months, and explain end-of-month handling.
Age and Next Anniversary Calculator
Calculate age from a birth date and the next anniversary, without storing personal data.
Business Days Calculator
Count business days between dates using a weekend and holidays you enter.
Meeting Agenda Time Planner
Allocate a meeting across items and breaks, and show each item’s start and end.
Meeting Minutes Template
Fill attendance, items, decisions, and owners in an Arabic or English template, then print it.
Meeting Decision Follow Up Tracker
Track an owner, date, and status for each decision locally, then export a follow-up file.
Unix Timestamp Converter
Convert a Unix time and a readable date, in seconds or milliseconds, with a time zone.
Pomodoro Focus Timer
Run local work and break cycles, and explain the limits of a background tab.
Stopwatch and Countdown Timer
Measure a duration or show time remaining. It is not a guaranteed alert after the page closes.
Hijri and Gregorian Date Converter
Convert with a stated supported calendar, and explain possible differences from an official moon-sighting announcement.
Time Zone Converter
Compare one moment between cities using the available time-zone and daylight-saving data.
Multi Time Zone Meeting Planner
Show the overlap of working hours participants set, without sending invitations.
ICS Calendar Event Generator
Generate an event file with a title, time, zone, place, and reminder. Import and sending stay with you.
Strong Password Generator
Generate a strong random password or an easy-to-remember passphrase with the length and character types you choose, and copy it in one click.
File Checksum Calculator and Comparison
Calculate SHA-256 or another supported digest and compare it with a fingerprint you paste.
Text Hash and HMAC Calculator
Hash text or calculate an HMAC with a key you enter locally. A hash is not reversible encryption.
JWT Reader
Decode the header and payload and show dates. Reading a token does not prove its signature.
Unix Chmod Permission Calculator
Convert values such as 0755 and read, write, and execute permissions, including symbolic form.
IP Address Format Converter
Convert numeric IPv4 forms and expand or compress IPv6, and check the format locally.
MAC Address Formatter
Normalize a MAC address and check its structure, without claiming to identify a device or owner.
International Domain Name Converter
Convert an Arabic or international domain and Punycode, and preview the name and encoding.
Local Password Strength Checker
Assess patterns in a password locally with guidance, without sending it or claiming a breach check.
Local X509 Certificate Reader
Show issuer, names, and validity from a public certificate you open. It does not by itself verify a live trust chain.
CSP Policy Builder
Choose content sources and produce a Content-Security-Policy draft and explanation, without claiming the copy is sufficient security.
Sensitive Log Data Redactor
Find common email, token, and key patterns and replace them for manual review. It does not guarantee every secret is found.
CORS Configuration Explainer
Paste headers and set an origin and method to explain likely allow or deny outcomes, without sending requests.
CIDR Subnet Calculator
Calculate an IPv4 or IPv6 range, network size, and addresses from clear definitions, without a connection.
SPF Record Explainer
Explain SPF mechanisms and syntax without branching lookups. It does not claim to simulate every DNS lookup.
DMARC Record Explainer
Explain a DMARC policy and tags and check the syntax, without changing DNS or analyzing incoming mail.
DNS Lookup
Show records for a domain from a chosen DNS provider, with cache, timeout, and limits. It is not a broad scan.
Domain Registration RDAP Lookup
Show the registrar, dates, and public statuses. Owner details may be redacted.
HTTP Header Checker
Fetch a limited public HTTPS response and show the status and headers, under strict request controls.
URL Redirect Checker
Show a limited redirect chain for a public link and explain the statuses.
TLS Certificate Checker
Show a public host certificate and its expiry, within what the hosting environment can do.
Domain Email DNS Checker
Read MX, SPF, DMARC, and DKIM names you provide. It is a configuration report, not a delivery guarantee.