Your online development toolkit

60 advanced tools for developers, designers and content editors!

General

Conversion calculator

Convert between commonly used units

Currency converter

Convert currencies and view historical data

Diff viewer

A visual diff tool to compare text and code

Bufferbloat and speed test

Test bufferbloat and internet speed

Text analyser

Text statistics and analytics

Time

Stopwatch

Easy to use stopwatch

Time zones

Find the exact time difference between time zones

Timer

Create super simple timers

Timestamp converter

An epoch/unix timestamp converter

Encoding

Barcode generator

Generate barcodes from files and strings

Checksum

Generate checksums for files and strings

Unicode analyser

Analyse unicode strings

QR code generator

Generate QR codes from text and files

Media

EXIF viewer

View image EXIF data

File converter

Convert media files

Image upscaler

Upscale images using DCNN

PDF editor

Simple PDF editor for password removal, rotating, etc.

SVG minifier

Remove bloat and unnecessary markup from SVGs

ZIP extractor

View and extract files from ZIP

Network

ASN lookup

Autonomous system number lookup

DNS lookup

Domain name system lookup

DNS propagation

Domain name system propagation checker

DS lookup

Delegation signer lookup

IP lookup

Lookup details about an IP address

MAC vendor lookup

Find MAC address vendor information

STUN tester

Test STUN server connection

Websocket tester

Test websocket connection and send/receive data

Whois

Whois domain name & IP lookup

Regex

ReDoS checker

Check regular expressions for DOS vulnerabilities

Regex data generator

Generate random input data for regular expressions

Regex generator

Generate regex that matches a set of strings

Programming

Chmod calculator

Chmod calculator

Collision calculator

Unique identifier collision calculator

Cron parser

Parser for cron schedule expressions

JS benchmark

Benchmark JavaScript

JS console

No devtools JavaScript console

JS minifier

Minify JavaScript

JS obfuscator

Obfuscate JavaScript

JSON type generator

Create types for Rust, Kotlin, TS and JSON schema

JSON viewer

Visualize, format and repair broken JSON

Package.json formatter

Format and prettify package.json-files

Robots.txt generator

Generate robots.txt-files

SQLite tester

A virtual ephemeral SQLite instance in your browser

Syntax checker

Syntax checker for JS, TS, JSON, CSS and HTML

UUID generator

Generate different types of UUIDs

Hardware

Gamepad tester

Test gamepads, controllers, joysticks and other peripherals

Security

Email checker

Check the integrity of email addresses

Email breach

Search for compromised accounts

Password breach

Check if your password has been leaked

Password generator

Create secure passwords

RSA generator

Generate RSA keys

Website

Accessibility checker

See how accessible your website is

Browser support

See the global/browser support for a feature

Expiry checker

See when domains expire

Performance checker

See how well your website performs

SSL checker

View SSL certificate details

Stack lookup

Identify technology on websites

Other external tools

Colorhex

Easy to use color tool. Supports conversion, color blindness simulation, harmonies and more

Bundlebee

Find information about NPM packages. Browse code, view dependencies and more

Filedrop

Send and receive files of any size instantly with WebRTC