Website & Developer Tools

Code formatters, converters, generators, and utilities for developers.

37 TOOLS AVAILABLE

Use JSON and SQL formatting tools, Base64 encoding, regular-expression testing, UUID generation and other developer utilities. Browser-based tools keep inputs local. Check generated output before integrating it into production code.

Showing 37 of 37 matching tools

HTML/CSS Minifier

Minify HTML and CSS code to reduce file size

JSON Formatter

Format, validate, and beautify JSON data

XML Validator

Validate XML documents against schemas

Markdown Editor

Write and preview Markdown with live rendering

Password Generator

Generate strong, secure passwords with custom rules

Password Strength Checker

Check how secure your password is against attacks

UUID Generator

Generate unique UUIDs (v1, v4) for your applications

Color Palette Generator

Generate harmonious color palettes for design projects

Image Compressor

Compress images without visible quality loss

Image Converter

Convert images between PNG, JPG, WebP, and more

PDF Converter

Convert documents to and from PDF format

File Converter

Convert files between common formats

Base64 Encoder/Decoder

Encode and decode Base64 strings instantly

Regex Tester

Test and debug regular expressions with live matching

SQL Formatter

Format and beautify SQL queries for readability

CSS Gradient Generator

Create beautiful CSS gradients with visual controls

Favicon Generator

Generate favicons in all required sizes from a single image

Lorem Ipsum Generator

Generate placeholder text in various styles and lengths

Cron Expression Generator

Build and validate cron expressions with a visual editor

JWT Decoder

Decode and inspect JSON Web Tokens without verification

File Download Time Calculator

Estimate how long a file takes to download from its size and your connection speed in megabits per second. Enter file size and connection speed to…

Streaming Bandwidth Calculator

Estimate the bandwidth needed to serve a number of viewers at a given bitrate per stream. Enter concurrent viewers and bitrate per stream to see…

Video File Size Calculator

Estimate the size of a video file from its bitrate and duration, which helps when planning storage, uploads and streaming costs. Enter bitrate and…

Image File Size Calculator

Estimate the uncompressed size of an image from its pixel dimensions and colour depth. Enter width, height and bits per pixel to see uncompressed…

Aspect Ratio Calculator

Find the aspect ratio of a screen or image and the height needed to keep that ratio at a new width. Enter width, height and new width to see width…

PPI Calculator

Calculate the pixel density of a screen from its resolution and diagonal size. Enter width, height and screen diagonal to see pixels per inch when…

Password Entropy Calculator

Estimate password strength in bits from its length and the size of the character set it draws from. Enter password length and character set size to…

Text to Binary Converter

Writes each byte of the text as 8 binary digits using UTF-8. Paste your text, see the result straight away, and copy it with one click. Nothing is…

Binary to Text Converter

Reads groups of binary digits back into text using UTF-8. Paste your text, see the result straight away, and copy it with one click. Nothing is…

Text to Hex Converter

Writes each byte of the text as two hex digits using UTF-8. Paste your text, see the result straight away, and copy it with one click. Nothing is…

Hex to Text Converter

Reads hex bytes back into text using UTF-8. Paste your text, see the result straight away, and copy it with one click. Nothing is uploaded: the tool…

JSON String Escape Tool

Escapes quotes, backslashes and line breaks so text fits inside a JSON string. Paste your text, see the result straight away, and copy it with one…

JSON String Unescape Tool

Turns escape sequences such as backslash-n back into real characters. Paste your text, see the result straight away, and copy it with one click.…

URL Encoder

Percent-encodes text so it can sit safely inside a URL. Paste your text, see the result straight away, and copy it with one click. Nothing is…

URL Decoder

Decodes percent-encoded text back into readable characters. Paste your text, see the result straight away, and copy it with one click. Nothing is…

HTML Escape Tool

Replaces special characters with HTML entities. Paste your text, see the result straight away, and copy it with one click. Nothing is uploaded: the…

HTML Unescape Tool

Turns common HTML entities back into characters. Paste your text, see the result straight away, and copy it with one click. Nothing is uploaded: the…