Dev Tools Mobile Client

Developer Tools

Free, private developer tools

Starting with two QA-specific generators you won't find as a generic online utility — a boundary value & equivalence partitioning test case generator, and a Playwright CI workflow generator — alongside everyday utilities for JSON, JWTs, encoding, and encryption. Every tool runs entirely in your browser: nothing is uploaded, logged, or stored.

Test Design

Generate test cases with proven QA techniques.

BVA / Equivalence Turn field constraints into boundary value and equivalence-partition test cases — valid and invalid, ready to run.

CI/CD

Generate pipelines and workflow configs for CI.

Playwright CI YAML Generate a production-ready GitHub Actions workflow for Playwright — triggers, matrix, sharding, caching, artifacts and secrets. TestNG XML Generator Build a valid testng.xml — parallel execution, cross-browser test blocks, smoke/regression groups, listeners and parameters.

JSON

Format, inspect, query, diff and transform JSON.

JSON Formatter Format, minify and validate JSON with exact error locations and a tree view. JSON Parser & Repair Parse messy JSON, auto-repair trailing commas and quotes, escape and unescape strings. JSON → JSON Schema Infer a typed JSON Schema (Draft-07 or 2020-12) from any JSON sample. JSONPath Finder Click any node to copy its JSONPath, or run a JSONPath query and see live matches. JSON Diff Checker Compare two JSON documents semantically — added, removed and changed values by path.

Converters

Move data between formats, schemas and code.

Java Entity → JSON Paste JPA entity classes and generate realistic JSON or TypeScript — models one-to-one, one-to-many, many-to-one and many-to-many relationships. JSON → Java POJO Convert JSON into Java classes — Lombok @Data, records or getters/setters, with Jackson, nested classes and date detection. YAML ⇄ JSON Convert YAML to JSON and JSON to YAML in your browser, with validation and pretty output. XML ⇄ JSON Convert between XML and JSON in both directions, with attributes and arrays preserved. cURL → Code Paste a cURL command and get ready-to-run fetch, axios, Python requests or Go code.

Encoding & Security

Encode, decode, sign, hash and encrypt.

JWT Debugger Decode JWT headers and claims, read expiry in plain English, and verify signatures. Encoder / Decoder Encode and decode Base64, Base64URL, URL, Hex, Binary, HTML entities and Unicode. Encrypt / Decrypt AES-GCM/CBC encryption with a passphrase, plus SHA & HMAC hashing — all in your browser.

Text & Time

Regex, timestamps and everyday text tasks.

Regex Tester Test regular expressions live with match highlighting, capture groups and replace preview. Timestamp Converter Convert Unix epoch to human dates and back, in UTC and local time, with live current time.