Free online tools that run right in your browser.
25 free tools for PDF, images, development, design and writing. Each tool includes instructions and processing details. No tool signup required.
25 tools available.
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UI UX Tools
Website Theme Generator
Generate primary, secondary, accent, base, and background colors with a live website preview.
Color Names Library
Browse named colors with HEX and RGB values, filter by hue, and copy in one click.
Color Contrast Checker
Calculate the contrast ratio of text and background colors according to WCAG guidelines.
QR Code Generator
Generate custom QR codes for URLs, vCards, locations, and social media, with color options and multi-format downloads.
Developer Tools
JSON to CSV Converter
Convert JSON objects to downloadable CSV with combined headers and spreadsheet formula protection.
JWT Decoder
Decode, read, and inspect JSON Web Token header, payload claims, and signature info.
JSON Formatter
Prettify, validate, format, and minify JSON strings with live error highlighting.
Base64 Encoder / Decoder
Encode plain text into Base64 formats or decode Base64 back into readable text.
Regex Tester
Test and debug Regular Expressions with real-time match highlighting, group extraction, and replace engine.
UUID / ULID Generator
Generate UUID v4, v1, v5, and lexicographically sortable ULIDs in bulk with custom quote formatting.
Timestamp Converter
Convert Unix epoch timestamps to human-readable dates (UTC/Local/ISO) and convert dates back to timestamps.
Hash Generator
Generate cryptographic SHA-256, SHA-512, SHA-1, and MD5 hashes for text, secret HMAC keys, and file checksums.
HTML Live Preview
Live isolated HTML, CSS, and JS editor with real-time preview, device viewport switcher, and component templates.
Document Tools
Image Compressor
Compress images to JPEG or WebP, adjust quality, and compare original and output sizes.
PDF Compressor
Reduce PDF file size in the browser with adjustable quality. Processed in your browser.
PDF to Text (OCR)
Extract text from scanned PDFs in the browser. Processed in your browser.
PDF Converter
Convert JPG, PNG, and other images plus text files into a single PDF. Processed in your browser.
Image Converter
Convert and resize PNG, JPG, WebP, GIF, BMP, SVG, and other images in batches of up to 20 files.
PDF Page Organizer
Reorder, rotate, delete, and merge PDF pages in the browser. Processed in your browser.
Sign PDF
Add typed text or a hand-drawn signature to a PDF and place it anywhere. Processed in your browser.
Remove PDF Password
Decrypt and remove password protection from PDFs in the browser. Optional password memory for this tab session.
Metadata Checker
Select a supported file to inspect available EXIF, PDF, and file details. Processed in your browser.
Writing & SEO
SERP Snippet Preview
Preview titles, descriptions and URLs in approximate desktop and mobile search snippets.
Robots.txt Generator
Generate crawler rules with user agents, allow and disallow paths, and a sitemap URL.
Word Counter
Count words, characters, sentences, reading time, and keyword density live as you type.