SADevToolBox

All Developer Tools

Every tool on SADevToolBox, grouped by category. All of them are free, need no account and process your input in your browser.

JSON Tools

About JSON Tools

Format, validate, minify and convert JSON to CSV, XML, C# and TypeScript.

JSON Formatter Pretty-print JSON with your choice of indentation and optional key sorting. JSON Validator Check JSON syntax and pinpoint errors by line and column. JSON Minifier Remove whitespace from JSON and see how many bytes you save. JSON Beautifier Turn loose JSON with comments, single quotes or trailing commas into clean JSON. JSON to CSV Convert JSON arrays to CSV with flattened nested fields. JSON to XML Convert JSON objects and arrays to well-formed XML. JSON to C# Class Generate C# model classes with inferred types from sample JSON. JSON to TypeScript Interface Generate TypeScript interfaces from a sample JSON object.

SQL Tools

About SQL Tools

Format queries and generate CREATE, INSERT and UPDATE statements for SQL Server, PostgreSQL and MySQL.

SQL Formatter Beautify SQL with consistent indentation and keyword case. SQL Minifier Strip comments and whitespace from SQL safely. SQL to C# Model Turn CREATE TABLE statements into C# classes with mapped types. JSON to SQL INSERT Create INSERT statements from a JSON array of objects. CSV to SQL INSERT Create INSERT statements from CSV with a header row. SQL CREATE TABLE Generator Build CREATE TABLE statements column by column. SQL INSERT Generator Build INSERT statements from columns and values. SQL UPDATE Generator Build UPDATE statements with SET and WHERE clauses.

Encoding Tools

About Encoding Tools

Encode and decode Base64, URLs and HTML entities, and inspect JWT tokens.

Base64 Encoder Encode text or files to Base64, URL-safe Base64 or data URIs. Base64 Decoder Decode Base64 back to text or a downloadable file. URL Encoder Percent-encode URLs and query string values. URL Decoder Decode percent-encoded URLs and inspect query parameters. HTML Encoder Escape <, >, & and quotes as HTML entities. HTML Decoder Convert HTML entities back to readable characters. JWT Decoder Read JWT header and claims. Decoding does not verify the signature.

Web Tools

About Web Tools

Format HTML, CSS and JavaScript, generate meta tags, robots.txt and sitemaps, and convert colors.

HTML Formatter Indent and tidy HTML markup. CSS Formatter Beautify or minify CSS stylesheets. JavaScript Formatter Re-indent minified or messy JavaScript. Meta Tag Generator Create SEO title, description, canonical and robots tags. Open Graph Meta Generator Create Open Graph and Twitter Card tags for link previews. Robots.txt Generator Build robots.txt crawl rules for search engines. Sitemap XML Generator Turn a list of URLs into a valid sitemap.xml. Color Converter Convert colors between HEX, RGB, HSL, HSV and CMYK.

Generators

About Generators

Generate UUIDs, GUIDs, passwords, placeholder text, random numbers and mock data.

UUID Generator Generate random v4 or time-ordered v7 UUIDs in bulk. GUID Generator Generate GUIDs in .NET, C# and SQL Server formats. Password Generator Create strong random passwords and passphrases. Lorem Ipsum Generator Generate placeholder text by paragraphs, sentences or words. Random Number Generator Pick random numbers in a range, with or without duplicates. Fake JSON Data Generator Create realistic mock JSON records for testing. SQL Mock Data Generator Create realistic test data as SQL INSERT statements.

Converters

About Converters

Convert Unix timestamps, dates, data sizes, temperature, length, weight and speed.

Unix Timestamp Converter Convert epoch seconds or milliseconds to dates and back. Date/Time Converter Convert dates between time zones and formats. Bytes Converter Convert byte counts to human-readable sizes. KB/MB/GB Converter Compare decimal and binary storage units side by side. Temperature Converter Convert between Celsius, Fahrenheit, Kelvin and Rankine. Length Converter Convert metric and imperial lengths and distances. Weight Converter Convert kilograms, pounds, ounces, stone and more. Speed Converter Convert km/h, mph, m/s, knots and more.

Text Tools

About Text Tools

Count words, change case, clean up and sort lines, and compare two texts.

Word Counter Count words, sentences and reading time as you type. Character Counter Count characters, bytes and lines against common limits. Case Converter Switch text between upper, lower, title, camel and snake case. Remove Duplicate Lines Delete repeated lines while keeping the original order. Remove Extra Spaces Collapse repeated spaces, trim lines and remove blank lines. Text Sorter Sort lines alphabetically, numerically or by length. Text Diff Highlight the differences between two texts. Line Break Formatter Join, wrap or convert line breaks and line endings.