Developer Tools
Free, private developer tools
A growing toolbox for everyday engineering work — format JSON, generate schemas, debug JWTs, encode and decode anything, and encrypt data. Every tool runs entirely in your browser: nothing is uploaded, logged, or stored.
JSON
Format, inspect, query, diff and transform JSON.Converters
Move data between formats, schemas and code.Encoding & Security
Encode, decode, sign, hash and encrypt.Text & Time
Regex, timestamps and everyday text tasks.No tools match your search.
Built for developers, QA and engineers
These utilities cover the small, repetitive tasks that interrupt real work: pretty-printing an API response, checking why a JSON Web Token is rejected, generating a schema from a sample payload, or converting an XML feed to JSON. Each tool is designed to be fast, keyboard-friendly, and accurate — with clear error messages instead of silent failures.
Private by design
Many online utilities quietly send your input to a backend. Ours never do. All parsing, encoding, hashing and encryption happen locally in your browser using native JavaScript and the Web Crypto API, so you can safely work with production data, tokens, secrets and personal information.
From quick checks to full test suites
When you are ready to automate the journeys behind this data, OrbitTest writes readable, intent-first browser and mobile tests that follow real user flows. Open source under Apache 2.0.