Tool
API Response Mocker
Generate realistic mock API responses with dynamic data using Faker.js. 17 pre-built templates for testing and development.
Developer Tools
Tools
Free utilities for developers — No signup required
Nerd Tools
Custom-built utilities designed for developers and tech enthusiasts.
Tool
Tech Pulse
Tech news feed for developers, sorted by topic. Get the latest AI, Cloud, DevOps, and Security headlines in one place.
Tool
Resume Optimizer
Transform your resume for ATS compliance with AI-powered optimization. Upload and download improved DOCX/PDF versions.
Tool
IP Checker + Browser Info
Discover your IP address, location, ISP details, and comprehensive browser information.
Tool
DNS Lookup
Comprehensive DNS record lookup with native and DoH support, email security analysis, and export options.
Tool
Regex Tester & Debugger
Test regular expressions with live highlighting, capture groups, JSON output, and common pattern presets.
Tool
QR Code Generator
Create customizable QR codes for URLs, text, email, phone, and WiFi. Download as PNG or SVG.
Recommended Tools
Curated external tools we use and recommend
Web & Frontend
Rapid prototyping and UI sandboxes that keep creativity flowing.
Tool
Tailwind Play (opens in a new tab)
Sandbox Tailwind CSS snippets in the browser.
play.tailwindcss.com
Tool
StackBlitz (opens in a new tab)
Instant online dev environments that feel native.
stackblitz.com
Tool
CodeSandbox (opens in a new tab)
Shareable React, Vue, and Vanilla sandboxes.
codesandbox.io
Tool
Can I Use (opens in a new tab)
Up-to-date browser support tables for modern features.
caniuse.com
API & Testing
Inspect, mock, and convert endpoints without friction.
Tool
Hoppscotch (opens in a new tab)
Open-source REST & GraphQL client in the browser.
hoppscotch.io
Tool
Swagger Editor (opens in a new tab)
Design and test OpenAPI specs collaboratively.
editor.swagger.io
Tool
curlconverter (opens in a new tab)
Turn any curl command into typed client code.
curlconverter.com
Images & Assets
Compress, optimize, and curate visuals ready for production.
Tool
Squoosh (opens in a new tab)
Compress images locally with powerful codecs.
squoosh.app
Tool
TinyPNG (opens in a new tab)
Lightning-fast PNG and JPEG compression.
tinypng.com
Tool
SVGOMG (opens in a new tab)
Optimize SVGs with fine-grained control.
jakearchibald.github.io
Tool
Heroicons (opens in a new tab)
MIT-licensed SVG icons for product interfaces.
heroicons.com
Tool
Phosphor Icons (opens in a new tab)
Flexible icon family with multiple weights.
phosphoricons.com
Tool
Simple Icons (opens in a new tab)
Brand icons for social links and app stores.
simpleicons.org
Tool
Google Fonts (opens in a new tab)
Free and open-source web typography.
fonts.google.com
Tool
Excalidraw (opens in a new tab)
Hand-drawn collaboration boards for diagrams.
excalidraw.com
Tool
diagrams.net (opens in a new tab)
Flowcharts and architecture diagrams that sync to cloud drives.
diagrams.net
Data & JSON
Parse, visualize, and convert payloads effortlessly.
Tool
JSON Hero (opens in a new tab)
Explore JSON data with a polished UI.
jsonhero.io
Tool
JSON Crack (opens in a new tab)
Generate interactive graphs from JSON.
jsoncrack.com
Tool
quicktype (opens in a new tab)
Generate types and models from JSON samples.
app.quicktype.io
Tool
Prettier Playground (opens in a new tab)
Experiment with Prettier formatting instantly.
prettier.io
Performance & Accessibility
Keep shipping fast, inclusive experiences with confidence.
Tool
PageSpeed Insights (opens in a new tab)
Run Lighthouse audits directly from Chrome's team.
pagespeed.web.dev
Tool
WAVE (opens in a new tab)
WebAIM's free checker that flags accessibility issues in place.
wave.webaim.org
Tool
Lighthouse CI (opens in a new tab)
Automate Lighthouse audits in your CI pipeline.
github.com
Tool
axe DevTools (opens in a new tab)
Automated accessibility testing for web apps.
deque.com
Know a must-have tool?
Send me a note and I'd love to add it to the list.