27 free tools · no signup

Developer tools that stay in your browser

Format JSON and code, preview HTML & CSS, decode JWTs, generate hashes, edit PDFs and create QR codes — fast, free, and private by design.

Everything in one toolbox

Jump straight to the tool you need.

Format, validate, compare, and convert JSON, CSV, and XML data.

Generate MD5, SHA-1, SHA-256, SHA-512, and HMAC hashes for text and files.

UUIDs, regular expressions, Unix timestamps, and cron schedules.

Crop, delete, insert, and add pages to PDFs without uploading them.

Create QR codes and barcodes and download them as PNG.

Why use KaviForge

100% private

Everything runs in your browser. Files and input are never uploaded.

Fast & lightweight

Instant results with no waiting on servers or page reloads.

Free, no signup

No accounts, no watermarks, no usage limits.

Works everywhere

Desktop, tablet, or phone — light and dark mode.

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