Encoding Tools
8 tools in this category. Every tool runs entirely in your browser.
Base64 Encode / Decode
Convert text to and from Base64 with full Unicode support.
Open Tool →Image to Base64 Converter
Convert PNG, JPEG, WebP, or GIF to Base64 or a data URI in your browser — and decode Base64 back into a downloadable image — with ready-to-paste JSON snippets for OpenAI, Claude, and Gemini vision API tests. No upload.
Open Tool →URL Encode / Decode
Percent-encode and decode URL components, or form-urlencoded values (space as +), with a mode switch.
Open Tool →URL Parser & Query String Editor
A free online URL parser and query string editor. Split a URL into scheme, host, path, and query parameters, edit them in a table with decoded previews, remove utm tracking parameters, and rebuild the link — 100% local.
Open Tool →String Escape / Unescape
Escape and unescape strings for JavaScript, HTML, and SQL targets in one click.
Open Tool →Image Compressor — Lossless PNG & Batch
A free image compressor that runs 100% in your browser. Output true lossless PNG, lossy PNG, WebP, or JPEG; compress a whole batch and download all as .zip. Nothing is ever uploaded.
Open Tool →QR Code Generator
Generate QR codes for URLs, Wi-Fi networks, contacts, email, SMS, and phone numbers — with adjustable colors, error correction, and module styles. Download PNG or SVG. 100% local.
Open Tool →QR Code Scanner
Free online QR code scanner and reader. Scan from an image, screenshot, or camera to reveal URLs and Wi-Fi passwords — 100% local, nothing is uploaded.
Open Tool →