File Checksum

Check a downloaded file against its published MD5, SHA-1 or SHA-256 checksum. Runs entirely in your browser — nothing is uploaded.

tunalime.dev tools

A privacy-first toolbox of small web utilities — PDF tools, converters, text tools and code generators. The tools themselves need JavaScript, but every one has its own page, listed below.

PDF 12

Merge PDFs Combine multiple PDFs into one file Split PDF Split a PDF into individual pages or ranges Rotate PDF Rotate selected pages 90°, 180°, or 270° Organize PDF Delete pages and reorder the rest, then save Unlock PDF Remove a known password from a PDF so other tools can read it. Runs entirely in your browser — nothing is uploaded. Protect PDF Add a password to a PDF and choose whether printing, copying and editing stay allowed. Runs entirely in your browser. PDF → Text Extract a PDF's existing text layer as plain text, page by page. Runs entirely in your browser. Images → PDF Combine images (JPG/PNG) into a single PDF PDF → Images Export PDF pages as PNG or JPG images Word → PDF Convert .docx files to PDF (server-side) Uploads OCR Extract text from images and scanned PDFs Uploads Compress PDF Reduce PDF file size (server-side) Uploads

Converters 4

Image Format Convert between JPG, PNG, and WebP HEIC → JPG Convert iPhone HEIC photos to JPG or PNG Compress & Resize Compress or resize images with size comparison CSV ↔ JSON Convert between CSV and JSON (both directions)

Text 4

Case Converter Convert text to UPPER, lower, Title, sentence… Word Counter Live word, character, line count + reading time Text Cleaner Remove extra spaces, blank lines, duplicates Sort & Reverse Sort lines, reverse text, find & replace

Code & Generators 11

JSON Formatter Format, minify, and validate JSON Base64 Encode and decode Base64 (with Swap button) URL Encode Percent-encode and decode URLs UUID Generator Generate UUID v4 (and v7 for databases) Password Generator Strong passwords with strength indicator Hash Generator MD5, SHA-1, SHA-256 of text File Checksum Check a downloaded file against its published MD5, SHA-1 or SHA-256 checksum. Runs entirely in your browser — nothing is uploaded. JWT Decoder Decode a JWT's header, payload and expiry into readable form. The signature is not verified. Runs entirely in your browser. QR Generator Make a QR code for a link, a WiFi network or a contact card, and download it as SVG or PNG. Runs in your browser. Timestamp Converter Convert Unix epoch timestamps to local and UTC dates, and back. Runs entirely in your browser. Colour & Contrast Convert HEX, RGB and HSL, and check any colour pair against WCAG 2.2 AA and AAA. Runs entirely in your browser.

Most tools run entirely in your browser — no uploads, no servers.