Skip to content
Day 69: new resources are added every day. See what's new

Web App

CyberChef

A browser-based toolkit for encoding, decoding and transforming data.

Visit CyberChef4.8
  • Rating

    4.8 / 5

  • Pricing

    Free

  • Difficulty

    Intermediate

  • Works on

    Web, Offline

Built with love by Shushant Lakhyani. Building bestproductivityresources.com

What is CyberChef?

CyberChef is a free, open-source web app from GCHQ that chains simple operations into recipes for encoding, decoding, encryption, compression and data analysis. Drag operations such as Base64, hashing or JSON formatting into place, and everything runs locally in your browser.

Pros: what CyberChef does well

  • Hundreds of operations
  • Runs fully in the browser
  • Recipes can be saved and shared

Cons: where it falls short

  • Interface is dense at first
  • Aimed at technical users

Who CyberChef is for

Developers, analysts and IT staff who regularly convert or inspect data.

Who can skip it

Non-technical users with no need to decode or transform data.

CyberChef alternatives

Not sold on CyberChef? These do a similar job, and each card says what it has in common.

Google Artemis

Focus: android, automation and ai agents. Shares open source and developer tools with CyberChef. A website, not a web app. Same 4.8 rating.

WebsiteFreeWeb

Cloudflare Security Audit Skill

Focus: security audit, coding agent and ai agents. Shares open source and developer tools with CyberChef. A website, not a web app. Adds macOS, Windows and Linux. Rated 4.7 (CyberChef: 4.8).

WebsiteFreeWeb, macOS

Ego Lite

Focus: ai browser, browser automation and ai agents. Shares open source and developer tools with CyberChef. A website, not a web app. Adds macOS, Windows and Linux. Rated 4.7 (CyberChef: 4.8).

WebsiteFreeWeb, macOS

Tardigrade

Focus: typescript framework, durable agents and agentic workflows. Shares developer tools and open source with CyberChef. A website, not a web app. Rated 4.7 (CyberChef: 4.8).

WebsiteFreeWeb

Build with Claude

Focus: claude code, plugins and marketplace. Shares developer tools and open source with CyberChef. A website, not a web app. Freemium (CyberChef: Free). Rated 4.6 (CyberChef: 4.8).

WebsiteFree planWeb

Builder.io Skills

Focus: ai agents, skills and claude code. Shares developer tools and open source with CyberChef. An AI tool, not a web app. Rated 4.5 (CyberChef: 4.8).

AI ToolFreeCross-Platform

Free alternatives to CyberChef

Want to spend nothing? These free picks cover similar ground.

Cline for Desktop

Focus: coding agent, ai and desktop app. Shares open source and developer tools with CyberChef. A desktop app, not a web app. Adds macOS and Windows. Rated 4.5 (CyberChef: 4.8).

Desktop AppFreemacOS, Windows

Dasel

Focus: json, yaml and command line. Shares data conversion and open source with CyberChef. A desktop app, not a web app. Adds macOS, Windows and Linux. Rated 4.5 (CyberChef: 4.8).

Desktop AppFreemacOS, Windows

simslim

Focus: ios, simulator and xcode. Shares developer tools and open source with CyberChef. A Mac app, not a web app. Adds macOS. Rated 4.5 (CyberChef: 4.8).

Mac AppFreemacOS

Watchexec

Focus: file watcher, automation and command line. Shares developer tools and open source with CyberChef. An automation tool, not a web app. Rated 4.5 (CyberChef: 4.8).

Automation ToolFreeCross-Platform

Agentlas OS

Focus: ai agents, orchestration and local-first. Shares open source and developer tools with CyberChef. An AI tool, not a web app. Rated 4.4 (CyberChef: 4.8).

AI ToolFreeCross-Platform
Are you the maker of CyberChef?Get a free Featured badge for your site, a share image and ready-to-paste posts. No sign-up.

New · updated daily

What people are actually doing with AI

Real use cases shared on Reddit, Hacker News, X, GitHub and blogs, summarised in plain words with a link to every original post.

Browse AI use cases

Free Notion database

1,100+ ways people are making money online

Real online businesses, creators and projects, broken down by how they make money: apps, online stores, AI tools and more. Free on Gumroad.

Get the free database

Free Notion database

399+ ways to make money online

Hundreds of online income methods in one place, so you can compare options and pick one to try. Free on Gumroad.

Get the free list

For research and ideas only. Results vary and nothing here is a promise of income. See our Disclaimer.

Weekly newsletter

Everything new, every Monday.

One short email every Monday with everything shipped that week: new free tools and websites, new guides, new free browser tools and what's new in my free Gumroad libraries, plus how the site is growing. Free, and you can unsubscribe anytime.

Join the newsletter

You sign up on Gumroad, which stores your email to send the newsletter. See our Privacy Policy.