A collection of developer utilities in a single desktop application

Web app that can hash/hmac, encrypt/decrypt, and sign/verify the data, debug JWT tokens, parse and edit ASN1 structures, compute diffs, and more

Plain toolbelt for developers

A simple JWT decoder extension for VS Code

Web application to track and analyze workout data.

Privacy-first URL analyzer. Parse, decode & inspect URLs in the browser — JWT, timestamps, Base64, JSON. No data sent to servers.

Minimal TUI for decoding JWT

9-in-1 browser-based developer toolkit. Single HTML file. No dependencies.

Free, open-source developer utilities that run entirely in your browser. 700+ tools across 34 categories.

JSON Web Tokens decoder

Developer-focused cookie manager for security learning and backend testing.

El Sistema Ideal para tu escuela Ideal

JWT Analyzer is a C# CLI tool that reads, scans, and edits JSON Web Tokens for security analysis. It helps identify common JWT misconfigurations, decode claims, and modify tokens for testing purposes. Designed as an early-stage project for educational and authorized security testing.

11+ free browser-based developer tools — JSON formatter, regex tester, CSS generators, JWT decoder, hash generator & more. No signup, no ads, 100% client-side.

Fast, private, client-side developer tools. JSON Formatter, Dummy Data Generator, JWT Decoder. No server calls. No tracking.

JWT-Sem is an educational repository for exploring JSON Web Tokens (JWT) and software security concepts. It includes practical examples and challenges, covering JWT encoding, decoding, signature verification, and simplified RSA operations. The repository also features a web tool with JWT and RSA functionalities to help illustrate these concepts.

Free online JSON tools for developers – viewer, formatter, validator, JSON to CSV, JWT decoder and more.

Pocket toolkit for developers

BLACKSURFACE is an offensive security reconnaissance and attack-surface mapping platform designed for bug bounty hunters, red teamers, and Penetration Testers. It centralizes reconnaissance workflows, tools, and intelligence into a single, high-impact command interface.

🔍 Analyze and edit JSON Web Tokens with JwtAnalyzer, a C# CLI tool for security assessments and educational purposes.