All Tools
Discover our comprehensive collection of free online tools for developers, designers, and everyone.
.htaccess Generator
Generate Apache .htaccess configuration files with URL redirects, rewrites, security rules, HTTPS enforcement, caching, GZIP compression, and custom error pages. Perfect for web developers and system administrators.
Acceleration Converter
Convert between different acceleration units including m/sĀ², ft/sĀ², g-force, and gal. Quick and accurate acceleration conversions for physics and engineering applications.
Age Calculator
Calculate exact age in years, months, and days from any birthdate. Perfect for health records, legal documents, HR purposes, and personal milestones.
Angle Converter
Convert between different angle units including degrees, radians, gradians, turns, arcminutes, and arcseconds. Quick and accurate angle conversions for mathematical and engineering applications.
API Response Formatter
Paste a whole HTTP response ā status line, headers and body ā and inspect it. Get the status code with its meaning, a categorised header table, a formatted and syntax-highlighted body, a collapsible JSON tree with search and JSONPath queries, duplicate-key and numeric-precision warnings, and a cURL command for the matching request.
API Tester & HTTP Client
Test REST APIs and HTTP endpoints with this privacy-first API testing tool. Send GET, POST, PUT, PATCH, DELETE requests with custom headers, authentication, and request bodies. Generate code in 16+ programming languages including JavaScript, Python, PHP, Go, Ruby, and more. Perfect for API development, debugging, and integration testing.
Area Converter
Convert between different units of area measurement including square millimeters, square centimeters, square meters, square kilometers, square inches, square feet, square yards, acres, hectares, and more. Quick and accurate area conversions.
Argon2 Hash Generator & Verifier
Generate Argon2id, Argon2i and Argon2d hashes and verify passwords against existing hashes ā entirely in your browser. Decode any Argon2 PHC string, check its parameters against OWASP minimums, and calibrate the iteration count for your hardware.
Aspect Ratio Calculator
Calculate aspect ratios from width Ć height and scale dimensions to a target while preserving the ratio. Includes presets for common ratios (16:9, 9:16, 4:3, 3:2, 1:1, 4:5, 21:9, 2:1, 5:4) for video, photo, and CSS layouts.
AVIF to JPG Converter
Convert next-generation AVIF images to widely compatible JPG format. Upload your AVIF files and download them as optimized JPG images with customizable quality settings.
AVIF to PNG Converter
Convert next-generation AVIF images to PNG format with transparency support. Upload your AVIF files and download them as PNG images with customizable compression settings.
AVIF to WebP Converter
Convert next-generation AVIF images to WebP format with flexible compression options. Upload your AVIF files and download them as WebP images with lossless or lossy compression settings.
Background Remover
Remove backgrounds from images using AI-powered processing. Works with people, objects, products, and more. Supports drag-and-drop functionality with PNG, JPG, WEBP formats.
Barcode Generator
Generate 16 popular barcode formats including Code 128, EAN-13, UPC-A, QR Code, Data Matrix, PDF417, and more. Download barcodes as PNG with customizable settings.
Base32 Encoder / Decoder
Encode or decode Base32 strings easily. Use this tool to convert between readable text and Base32 for safe data transfer or storage with human-readable format.
Base64 Encoder / Decoder
Encode or decode Base64 strings easily. Use this tool to convert between readable text and Base64 for safe data transfer or storage.
Bcrypt Hash Generator & Verifier
Generate secure bcrypt hashes and verify passwords against existing hashes. Bcrypt is a password hashing function with built-in salt and configurable cost factor for enhanced security.
BIMI Record Checker & Logo Validator
Verify BIMI (Brand Indicators for Message Identification) DNS records for any domain and validate the SVG logo file against the strict SVG Tiny Portable/Secure (SVG Tiny PS) profile required for email client display. Checks DNS record syntax at default._bimi.{domain}, fetches the logo URL, validates SVG profile compliance (no scripts, no animations, square aspect ratio, file size), and checks the Verified Mark Certificate (VMC) or Common Mark Certificate (CMC) required by Gmail and Apple Mail.
BLAKE2b Hash Generator & Verifier
Generate and verify BLAKE2b hashes in your browser. Choose any output length from 1 to 64 bytes, switch on BLAKE2b's native keyed mode with a key up to 64 bytes, hash text in UTF-8/UTF-16/Latin-1/Windows-1252 or raw hex and base64, stream multi-gigabyte files, and compare the result against a b2sum checksum.
BLAKE2s Hash Generator & Verifier
Generate and verify BLAKE2s hashes in your browser. Choose any output length from 1 to 32 bytes, use BLAKE2s's native keyed mode with a key up to 32 bytes, hash text as UTF-8/UTF-16/Latin-1/Windows-1252 or raw hex and base64, stream large files, and compare against an expected digest.
BLAKE3 Hash Generator & Verifier
Generate and verify BLAKE3 hashes in your browser. Pick any extendable output length, switch on keyed_hash mode with a 32-byte key, hash text as UTF-8/UTF-16/Latin-1/Windows-1252 or raw hex and base64, stream large files with live progress, and compare against a b3sum checksum.
Broken Link Checker
Find broken links, 404 errors, and redirects on your website. Check single pages or crawl sites (up to 100 pages, crawl depth 10, 500 links checked) with detailed reports.
Canonical URL Checker
Check if a website has proper canonical URL tags and identify potential SEO issues
Capacitance Converter
Convert between different electrical capacitance units including farads, microfarads, nanofarads, and picofarads