100 tools

All developer tools

Free and secure tools that speed up your daily development work.

No tools were found in this category.

JSON Tools

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JSON Formatter

JSON Formatter lets you process developer data directly in your browser. Your input stays on your device.

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JSON Minifier

JSON Minifier lets you process developer data directly in your browser. Your input stays on your device.

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JSON Validator

Validate JSON syntax and display a formatted result.

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JSON Escape

Escape text so it can be safely embedded in a JSON string.

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JSON Unescape

Decode escaped JSON string content into readable text.

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JSON Sort Keys

Recursively sort JSON object keys alphabetically.

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JSON Flatten

Flatten nested JSON objects into dot-separated paths.

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JSON Unflatten

Rebuild nested JSON from dot-separated object paths.

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JSON Path Extractor

Extract a value from JSON using a dot path.

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JSON Array Sort

Sort a JSON array by values or an object property.

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Encoding Tools

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Base64 Encode

Base64 Encode lets you process developer data directly in your browser. Your input stays on your device.

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Base64 Decode

Base64 Decode lets you process developer data directly in your browser. Your input stays on your device.

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URL Encode

URL Encode lets you process developer data directly in your browser. Your input stays on your device.

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URL Decode

URL Decode lets you process developer data directly in your browser. Your input stays on your device.

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HTML Encode

HTML Encode lets you process developer data directly in your browser. Your input stays on your device.

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HTML Decode

HTML Decode lets you process developer data directly in your browser. Your input stays on your device.

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Text to Binary

Convert UTF-8 text to binary bytes.

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Binary to Text

Decode binary bytes into UTF-8 text.

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Text to Hex

Convert UTF-8 text to hexadecimal bytes.

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Hex to Text

Decode hexadecimal bytes into UTF-8 text.

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ROT13 Converter

Apply the reversible ROT13 substitution cipher.

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Morse Code Encoder

Encode letters and numbers as Morse code.

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Morse Code Decoder

Decode Morse code into readable text.

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Unicode Escape

Convert text to Unicode escape sequences.

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Unicode Unescape

Decode Unicode escape sequences.

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Generator Tools

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GUID Generator

GUID Generator lets you process developer data directly in your browser. Your input stays on your device.

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QR Code Generator

QR Code Generator lets you process developer data directly in your browser. Your input stays on your device.

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UUID Bulk Generator

UUID Bulk Generator lets you process developer data directly in your browser. Your input stays on your device.

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Random Number Generator

Random Number Generator lets you process developer data directly in your browser. Your input stays on your device.

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Nano ID Generator

Generate compact URL-safe random identifiers.

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ULID Generator

Generate lexicographically sortable ULIDs.

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Random String Generator

Generate random strings with configurable length.

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Fake Data Generator

Generate sample names, emails, phones and addresses.

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Random Email Generator

Generate random example email addresses.

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Username Generator

Generate readable random usernames.

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Security Tools

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Password Generator

Password Generator lets you process developer data directly in your browser. Your input stays on your device.

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JWT Decoder

JWT Decoder lets you process developer data directly in your browser. Your input stays on your device.

Open

XML Tools

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XML Formatter

XML Formatter lets you process developer data directly in your browser. Your input stays on your device.

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XML Minifier

XML Minifier lets you process developer data directly in your browser. Your input stays on your device.

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XML Validator

Validate XML syntax directly in your browser.

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XPath Tester

Evaluate XPath expressions against an XML document.

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XML Escape

Escape XML special characters.

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XML Unescape

Decode XML entities into readable characters.

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Date Time Tools

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Unix Timestamp Converter

Unix Timestamp Converter lets you process developer data directly in your browser. Your input stays on your device.

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Date Difference Calculator

Calculate the difference between two dates.

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Age Calculator

Calculate age from a date of birth.

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Time Zone Converter

Convert a date and time between time zones.

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ISO Date Converter

Convert dates to ISO 8601 and Unix timestamps.

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Duration Converter

Convert seconds to days, hours, minutes and ISO duration.

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Text Tools

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Text Counter

Text Counter lets you process developer data directly in your browser. Your input stays on your device.

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Slug Generator

Slug Generator lets you process developer data directly in your browser. Your input stays on your device.

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Case Converter

Case Converter lets you process developer data directly in your browser. Your input stays on your device.

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Lorem Ipsum Generator

Lorem Ipsum Generator lets you process developer data directly in your browser. Your input stays on your device.

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Regex Tester

Regex Tester lets you process developer data directly in your browser. Your input stays on your device.

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Markdown Preview

Markdown Preview lets you process developer data directly in your browser. Your input stays on your device.

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Remove Duplicate Lines

Remove Duplicate Lines lets you process developer data directly in your browser. Your input stays on your device.

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Sort Lines

Sort Lines lets you process developer data directly in your browser. Your input stays on your device.

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Text Diff Viewer

Text Diff Viewer lets you process developer data directly in your browser. Your input stays on your device.

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Text Reverser

Reverse text by Unicode characters.

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Whitespace Remover

Remove extra spaces and blank lines from text.

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Line Numbering

Add sequential numbers to every text line.

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Add Prefix and Suffix

Add custom text before and after every line.

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Find and Replace

Find and replace text with optional case sensitivity.

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Hash Tools

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Hash Generator MD5/SHA1/SHA256

Hash Generator MD5/SHA1/SHA256 lets you process developer data directly in your browser. Your input stays on your device.

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SHA-384 Generator

Calculate a SHA-384 digest for text.

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SHA-512 Generator

Calculate a SHA-512 digest for text.

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HMAC SHA-256 Generator

Create an HMAC SHA-256 signature with a secret key.

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CRC32 Calculator

Calculate the CRC32 checksum of text.

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Color Tools

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Color Converter HEX/RGB

Color Converter HEX/RGB lets you process developer data directly in your browser. Your input stays on your device.

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Color Palette Generator

Generate lighter and darker shades from a HEX color.

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Color Contrast Checker

Calculate WCAG contrast ratio for two colors.

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Converter Tools

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CSV to JSON

CSV to JSON lets you process developer data directly in your browser. Your input stays on your device.

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JSON to CSV

JSON to CSV lets you process developer data directly in your browser. Your input stays on your device.

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YAML to JSON

Convert YAML documents to formatted JSON.

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JSON to YAML

Convert JSON objects and arrays to readable YAML.

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XML to JSON

Convert XML elements and attributes to JSON.

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JSON to XML

Convert JSON objects and arrays to XML.

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Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal.

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Length Converter

Convert common metric and imperial length units.

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Weight Converter

Convert kilograms, grams, pounds and ounces.

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Temperature Converter

Convert Celsius, Fahrenheit and Kelvin.

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Data Size Converter

Convert bytes, KB, MB, GB and TB.

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Percentage Calculator

Calculate percentages and percentage change.

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SEO Tools

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Meta Tag Generator

Generate HTML title, description and robots meta tags.

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Open Graph Generator

Generate Open Graph and Twitter Card tags.

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Robots.txt Generator

Generate a basic robots.txt file.

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Sitemap URL Generator

Generate XML sitemap URL entries from a list.

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Keyword Density Checker

Measure keyword frequency and density in text.

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SERP Preview

Preview a search result title, URL and description.

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Web Tools

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URL Parser

Parse a URL into protocol, host, path, query and hash.

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User Agent Parser

Detect common browsers, operating systems and devices.

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HTTP Status Lookup

Look up the meaning of common HTTP status codes.

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MIME Type Lookup

Find MIME types by file extension.

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Cron Expression Builder

Build a five-field cron expression.

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SQL Tools

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SQL Formatter

Format SQL statements for easier reading.

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SQL Minifier

Remove unnecessary whitespace from SQL.

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SQL String Escape

Escape apostrophes for SQL string literals.

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SQL IN Clause Generator

Create a quoted SQL IN list from lines.

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CSV to SQL Insert

Convert CSV rows to SQL INSERT statements.

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Image Tools

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SVG Placeholder Generator

Generate a customizable SVG placeholder image.

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