Open
JSON Studio
Format, validate, minify and compare JSON in a focused local workspace.
{ "hello": "world" }jsonformatter
Tool catalog
Explore developer tools
Search Devary tools by name, capability or command. Open any available tool in a focused workspace.
All tools
14 toolsOpen
API Playground
Build, send and inspect HTTP requests without leaving the browser.
GET /api/users → 200apihttp
Open
Regex Lab
Build, test and understand regular expressions with immediate feedback.
/^[a-z0-9_-]+$/giregextext
Open
JWT Inspector
Decode JWT structure, inspect claims and check token timing without transmitting sensitive values.
HEADER · PAYLOAD · SIGNATUREjwttoken
Open
Cron Studio
Create, explain and validate cron expressions in natural language.
*/15 9-17 * * 1-5cronscheduler
Open
Credential Generator
Generate client IDs and secrets locally with reusable, portable generation profiles.
clientId + clientSecretcredentialsclient-id
Open
SQL Formatter
Format and inspect SQL queries while preserving their meaning.
SELECT * FROM users;sqldatabase
Open
Color Converter
Convert colors between HEX, RGB, HSL and modern CSS formats.
#6366F1 → oklch(58% .23 277)colorcss
Open
Markdown Editor
Write Markdown with a focused editor and a live rendered preview.
# Build somethingmarkdowneditor
Open
Base64 Studio
Encode and decode UTF-8 text with standard Base64 and Base64URL locally.
UTF-8 ⇄ Base64 / Base64URLbase64encoder
Open
Timestamp Studio
Convert Unix timestamps and explicit ISO 8601 instants across UTC and IANA time zones locally.
epoch ⇄ ISO 8601 · IANAtimestampunix
Open
Text Diff
Compare text, code and configuration line by line locally with readable change hunks.
- before + afterdifftext
Open
UUID Studio
Generate cryptographically secure UUID v4 values and validate canonical UUIDs locally.
550e8400-e29b-41d4-a716-446655440000uuidguid
Open
Data Converter
Convert JSON, CSV and YAML locally with explicit mapping, typing and safety rules.
JSON ⇄ CSV · JSON ⇄ YAMLjsoncsv