171 free professional tools for developers, creators and teams. No account, no limits, no data ever leaves your device.
Try the most searched ones right away — all in your browser, no account, no upload.
Format, validate and beautify JSON data online. Minify or pretty-print JSON with syntax highlighting. Free JSON formatter and validator.
dataGenerate strong, secure random passwords with custom length, uppercase, lowercase, numbers and symbols. Free online password generator tool.
utilityCompress images online for free. Reduce file size while maintaining quality. Supports PNG, JPG, WebP. No upload to server — 100% client-side.
imagesMerge multiple PDF files into one document. Drag to reorder. Free online PDF merger — no upload to server, 100% client-side.
pdfCreate scannable QR codes for URLs, text, WiFi networks, email and more. Download as PNG. Free online QR code generator.
utilityConvert between units of length, weight, temperature, volume, speed and more. Free online unit converter.
utilityEncode text to Base64 or decode Base64 to text online. Supports UTF-8. Free Base64 converter tool.
developerConvert colors between HEX, RGB, HSL and HSV formats. Color picker with live preview. Free online color converter tool.
cssFormat, convert and test: the utilities you use every day while coding.
Format, validate and beautify JSON data online. Minify or pretty-print JSON with syntax highlighting. Free JSON formatter and validator.
dataTest regular expressions online with real-time matching, highlighting and capture groups. Free regex debugger with cheat sheet.
developerEncode text to Base64 or decode Base64 to text online. Supports UTF-8. Free Base64 converter tool.
developerGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes online. Hash text or verify checksums. Free cryptographic hash generator.
developerDecode and inspect JSON Web Tokens (JWT) online. View header, payload, signature and expiration. Free JWT decoder and debugger.
developerGenerate random UUID v4 identifiers online. Bulk generate, copy and validate UUIDs. Free UUID/GUID generator tool.
developerMerge, compress and convert — all in the browser, without uploading your files.
Merge multiple PDF files into one document. Drag to reorder. Free online PDF merger — no upload to server, 100% client-side.
pdfSplit PDF files by page range. Extract specific pages from any PDF. Free online PDF splitter — no upload, 100% client-side.
pdfCompress images online for free. Reduce file size while maintaining quality. Supports PNG, JPG, WebP. No upload to server — 100% client-side.
imagesResize images online. Maintain aspect ratio. Set exact width and height. Download resized images. Free image resizer.
imagesCreate scannable QR codes for URLs, text, WiFi networks, email and more. Download as PNG. Free online QR code generator.
utilityConvert images to PDF. Combine multiple images into one PDF document. Free online converter — no upload, 100% client-side.
pdf171 tools, organized by how you work.
Base32 · Base64 · Binary…
CSV to JSON · JSON Diff Viewer · JSON Escape / Unescape…
CSS Border Radius · CSS Box Shadow · Color Blindness Simulator…
Favicon · Image Compressor · Image Cropper…
Age · Aspect Ratio · Barcode…
Add Line Numbers · Case · Character Counter for Social Media…
Hashtag · Heading · Headline Analyzer…
Bcrypt Hash · CORS Header · CSP Header…
Image to PDF · PDF Compress · PDF Merge…
Invoice · Markup & Margin · Privacy Policy…
Transparency first.
Every tool processes your data with JavaScript on your device. Your JSON, your PDFs and your passwords are never sent, saved or logged: open your browser Network tab and you will see no request is made.
No signup, no email, no daily limits, no popups covering the screen. Open the tool, get the result, close it. Free, no strings attached.
Ogni strumento è una vera pagina con spiegazioni ed esempi reali, non un widget con un'etichetta. Ti diciamo apertamente cosa funziona già e cosa stiamo ancora costruendo.