DEV3 Free Hash Generator — Source Code (React + Tailwind)

Source code of the DEV3 Hash Generator, a hash and HMAC generator for text or files: MD5 (built in), SHA-1, SHA-256, SHA-384 and SHA-512 through WebCrypto.

Free download: sign in to any DEV3 account and click Download ZIP. Try it live: https://dev3.tech/tools/hash-generator shows the finished tool running.

What is in the download

• A standalone Vite + React + TypeScript + Tailwind CSS project: src/tool holds the tool, shared pieces sit beside it
• package.json with exact versions plus a lockfile, so npm ci works
• README.md (run, build, embed in Next.js or plain React) and an MIT LICENSE

What the code does

• Compact RFC 1321 MD5 implementation
• HMAC for every algorithm including MD5
• File hashing up to 300 MB, read locally
• Hex (lower/upper) and Base64 output

Tech stack

React 19, TypeScript, Vite, Tailwind CSS 4.

Install and customise

The How to install and How to use tabs list the steps. In short: unzip, npm ci, npm run dev, then copy the tool folder into your own app if you want to embed it.

Good to know

• A browser-only tool: there is no backend or database in the code.
• Whole files are read into memory, so very large files are rejected rather than streamed.