Developer Tools
Browser-side developer labs for inspecting tokens, testing patterns, and transforming data safely.
8,349 tools · Page 1 of 348
Code Case Desk
Convert identifiers between camel, Pascal, snake, kebab, and CONSTANT case.
Advanced
OpenCron Desk
Explain cron expressions and preview schedules.
Advanced
OpenDiff Studio
Line-oriented before/after diff for configs and code snippets.
Advanced
OpenEncoding Workbench
Chain encode/decode transforms across common web codecs.
Advanced
OpenEnv Studio
Parse, redact, and diff .env files for fullstack workflows.
Advanced
OpenGit Cheat Desk
Commands, commits, branches, PR templates, and review checklists — no local git required.
Advanced
OpenGraphQL Workbench
Pretty-print GraphQL operations and keep variables beside the query.
Advanced
OpenHash Studio
Compare multiple hash/HMAC algorithms side by side with export.
Advanced
OpenHTTP Playground
Build cURL and fetch snippets for REST calls — no remote proxy.
Advanced
OpenJSON Studio
Pretty-print, minify, validate, and sort JSON in the browser.
Advanced
OpenJWT Inspector
Decode JWT header and payload locally with claim warnings.
Advanced
OpenLog Parser Desk
Classify pasted logs by ERROR, WARN, INFO, and DEBUG.
Advanced
OpenMarkdown Preview Desk
Write Markdown and preview a lightweight HTML render.
Advanced
OpenRegex Workbench
Test regular expressions with match highlighting and capture groups.
Advanced
OpenRelease Desk
Compare, bump, and check SemVer ranges for release engineering.
Advanced
OpenSchema Guard
Validate JSON payloads against practical JSON Schema checks.
Advanced
OpenSQL Format Lab
Pretty-print SQL with dialect labels and keyword case controls.
Advanced
OpenTimestamp Desk
Convert Unix/epoch timestamps for logs and APIs.
Advanced
OpenUUID / ID Desk
Generate UUID, ULID, and NanoID-style identifiers.
Advanced
OpenMD5 Hash (Hex) — Empty sample
Compute MD5 hash as Hex for empty sample.
Advanced
OpenMD5 Hash (Hex) — Hello World
Compute MD5 hash as Hex for hello world.
Advanced
OpenMD5 Hash (Hex) — Webhook body
Compute MD5 hash as Hex for webhook body.
Advanced
OpenMD5 Hash (Hex) — API key string
Compute MD5 hash as Hex for api key string.
Advanced
OpenMD5 Hash (Hex) — Password sample
Compute MD5 hash as Hex for password sample.
Advanced
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