Developer Tools
JSON, regex, SQL, API, and more coding utilities.
JSON
Populardeveloper
JSON Formatter
Paste raw JSON to instantly format, validate, or minify it. Includes syntax highlighting, inline error detection with line numbers, and one-click copy. Perfect for debugging API responses or config files.
jsonformattervalidator
developer
JSON to TypeScript
Generate TypeScript interfaces from JSON data. Handles nested objects and arrays.
jsontypescriptinterface
developer
JSON Path Finder
Click on any value in a JSON tree to get its path. Supports dot and bracket notation.
jsonpathfinder
developer
JSON Diff & Merge
Compare two JSON objects side-by-side, see added/removed/changed keys, and merge them.
jsondiffmerge
Encoder / Decoder
Populardeveloper
Base64 Encoder/Decoder
Instantly encode any text to Base64 or decode Base64 strings back to plain text. Handles full UTF-8 character sets including emojis and international characters. Useful for embedding data in URLs, emails, or API payloads.
base64encodedecode
developer
URL Encoder/Decoder
Encode or decode URLs and query strings. Supports both component and full URI modes.
urlencodedecode
developer
JWT Decoder
Decode JSON Web Tokens to inspect header, payload, and expiration. No data sent to any server.
jwttokendecoder
Code Tools
Populardeveloper
Regex Tester
Write and test regular expressions with real-time match highlighting, captured group inspection, and a library of common pattern presets. Supports all JavaScript regex flags including global, case-insensitive, and multiline.
regexregular-expressiontester
Populardeveloper
Diff Viewer
Paste two versions of text to instantly see additions, deletions, and modifications highlighted side by side. Switch between line-level and word-level diff modes. Great for reviewing code changes, config updates, or document revisions.
diffcomparetext
developer
Cron Expression Parser
Parse and explain cron expressions in human-readable format with preset examples.
cronschedulerparser
developer
SQL Formatter
Format and beautify SQL queries with customizable indentation.
sqlformatterbeautify
developer
Regex Library
Common regex patterns with descriptions, examples, and one-click copy.
regexpatternslibrary
This tool is coming soon. Stay tuned!
BetaProdeveloper
DB Schema Designer
Design database schemas visually — add tables, define columns with types and constraints, draw foreign key relationships, then export production-ready SQL. Supports PostgreSQL, MySQL, and SQLite dialects.
databaseschemasql
This tool is coming soon. Stay tuned!
NewProdeveloper
Regex Builder
Build complex regular expressions visually using drag-and-drop blocks. Add character classes, groups, anchors, and lookaheads with point-and-click controls. See the compiled pattern update in real time and test against sample text.
regexbuildervisual
This tool is coming soon. Stay tuned!
NewProdeveloper
Env Manager
Paste two .env files to instantly see which keys are missing, which values differ, and which are identical. Generate .env.example templates with sensitive values stripped. Mask secrets for safe screen sharing.
envenvironmentdotenv
Markdown
Updateddeveloper
Markdown Preview
A split-pane Markdown editor with live preview. Write GitHub Flavored Markdown on the left and see it rendered in real time on the right. Supports tables, task lists, strikethrough, and auto-linking.
markdownpreviewgfm
developer
Markdown Table Generator
Build markdown tables visually with a spreadsheet-like editor.
markdowntablegenerator
API
developer
API Response Formatter
Paste a cURL command or raw API response to see formatted, highlighted output.
apicurlresponse
This tool is coming soon. Stay tuned!
BetaProdeveloper
API Playground
A browser-based HTTP client for testing REST APIs. Set methods, headers, body, and query params, then inspect full responses with status codes, timing, and formatted JSON. No installs needed — like a mini Postman.
apihttprest
This tool is coming soon. Stay tuned!
NewProdeveloper
OpenAPI Viewer
Transform raw OpenAPI 3.0 or Swagger 2.0 specs into beautiful, interactive API documentation. See endpoints grouped by tags, explore parameters, request bodies, and response schemas — all in your browser.
openapiswaggerapi