Data & formats
JSON, YAML, XML, CSV — reshape payloads without leaving the tab.
PureDevKit
By a developer, for developers
Every developer utility, in one place
Format JSON, debug JWTs, generate cron, ship store assets — 114+ tools for the work you already do every day.
114 tools across data, security, HTTP, time, and more
Popular
Tools people open first
JSON Formatter
Beautify, minify, sort, and validate JSON entirely in the browser.
OpenJWT Debugger
Decode JWT header, payload, and signature in-browser with expiry countdown.
OpenCron
Build and decode cron in plain English — with next runs and a month preview.
OpenRegex Tester
Test JavaScript regular expressions with matches, groups, flags, and replace.
OpenUUID Generator
Bulk-generate UUID v4, UUID v7, NanoID, and high-entropy API keys locally.
OpencURL → Code
Paste a cURL command and get Go net/http, Python requests, fetch, and Axios.
OpenUnix Timestamp
Convert epoch seconds and milliseconds to ISO time, local time, and time zones.
OpenHash Generator
SHA-1, SHA-256, SHA-384, SHA-512, MD5, and HMAC from text or files in-browser.
OpenQR Code Generator
Free online QR code generator with logo, colors, and shapes. Make a QR code for a URL, Wi-Fi, vCard, UPI, location, PDF, or text — download as PNG, SVG, or PDF. No sign up, no watermark, never expires.
OpenSQL Formatter
Pretty-print SQL for PostgreSQL, MySQL, SQLite, MariaDB, and T-SQL.
OpenSuites
Related tools, grouped the way you work
Jump into a suite, then move between formatters, converters, and verifiers without hunting the catalog.
Data
Security & tokens
Debug JWTs, hash secrets, and generate keys locally.
HTTP toolkit
Turn cURL into code, inspect status codes, and sketch headers.
Time & cron
Epoch converters, timezone checks, and a full cron visualizer.
Generate & fixtures
IDs, fake data, and dummy APIs for prototypes and tests.
Image studios
QR codes, store screenshots, and app icons — design in-browser.
Studios
Full workspace studios
QR Studio
QR codes with style
Generate scannable codes for links, Wi‑Fi, contacts, and UPI — with logos, shapes, live scan checks, and PNG / SVG / PDF export.
Open studioScreenshot Studio
Store screenshots, no designer
Themed template sets, device frames, and exact App Store / Play Store sizes — drag text and devices on the canvas, then export.
Open studioIcon Studio
App icons end to end
Design once, export Xcode AppIcon sets and Android adaptive layers, with device previews and marketing frames.
Open studioBase64 Studio
Encode and decode anything
Text, files, images, PDFs, Basic auth, hex, and keys — one workspace for every Base64 job, with live preview and snippets.
Open studioTransfer Studio
Send files peer to peer
Share files phone ↔ laptop with a 6-digit code or QR — direct WebRTC, no cloud upload, bi-directional while the tab stays open.
Open studioWhy PureDevKit
Built for everyday engineering work
PureDevKit is a toolkit for formatting, decoding, generating, and previewing — the small jobs between tickets, without switching context.
Developers shipping APIs
Format payloads, decode tokens, and turn a DevTools cURL into working code — without breaking your flow.
Indie builders & mobile teams
Generate store screenshots, app icons, QR codes, and fixture data when you need assets fast.
Everyday engineering chores
Timestamps, cron, hashes, Base64, regex — the small jobs that show up between tickets.
Fast to open
Jump straight into a tool — no account wall, no setup wizard.
Built as suites
Related tools live together so you can jump from format → convert → verify without hunting.
Always expanding
New utilities land in the catalog as the day-to-day toolkit grows.
Pick a tool. Get it done.
114 utilities for formatting, converting, generating, and debugging — ready when you are.
Browse the catalog