developer

Free developer tools: JSON formatter, URL encoder, HTML escape, CSS minifier, code beautifier, regex tester, and more. Essential utilities for web developers.

Free Base64 image encoder. Convert images to Base64 data URIs instantly. Perfect for embedding images in CSS, HTML, or JSON. Works offline.

Free UML class diagram maker. Create professional class diagrams with relationships, attributes, and methods. Export as PNG or SVG.

Free cron expression parser. Decode and validate cron schedules with human-readable explanations. Test cron jobs before deployment.

Free CSS minifier and compressor. Reduce CSS file size by removing whitespace and comments. Optimize stylesheets for faster page loads.

Free CSV to JSON converter. Transform CSV files into JSON format instantly. Bidirectional conversion with preview. Works entirely in your browser.

Free Data URI generator. Convert files to Base64 data URIs for inline embedding. Support for images, fonts, and documents.

Free .env file parser and validator. Validate environment variable syntax, detect duplicates, and format .env files. Secure, browser-based tool.

Free ER diagram maker. Design database entity-relationship diagrams with tables, columns, and relationships. Export as PNG or SVG.

Free flowchart maker. Create professional flowcharts with shapes, connectors, and text. Export diagrams as PNG, SVG, or JSON.

Free HTML escape and unescape tool. Encode special characters for safe HTML display. Decode HTML entities back to readable text.

Free HTML to Markdown converter. Transform HTML content into clean Markdown syntax. Preserve formatting, links, and lists automatically.

Free JavaScript minifier. Compress JS files by removing whitespace, comments, and shortening variable names. Optimize code for production.

Free JSON formatter and validator. Beautify and validate JSON with syntax highlighting. Detect errors and format JSON data instantly.

Free JSONPath finder tool. Navigate JSON structures with JSONPath expressions. Query and extract data from complex JSON documents.

Free JSON Schema builder and validator. Create schemas and validate JSON data against them. Ensure data integrity with schema validation.

Free JSON to XML converter. Transform JSON data into XML format with customizable root elements. Bidirectional conversion available.

Free log formatter and viewer. Format and colorize log files for better readability. Parse JSON logs, stack traces, and timestamps.

Free Markdown to HTML converter. Transform Markdown syntax into clean HTML code. Preview rendered output in real-time.

Free URL query string parser. Decode and format URL parameters into readable key-value pairs. Encode objects back to query strings.

Free regex escape helper. Escape special characters for use in regular expressions. Test and validate regex patterns instantly.

Free sequence diagram maker. Create UML sequence diagrams with actors, messages, and lifelines. Export as PNG or SVG.

Free SQL formatter and beautifier. Format SQL queries with proper indentation and syntax highlighting. Supports MySQL, PostgreSQL, SQL Server.

Free SQL to JSON converter. Transform SQL query results into JSON format. Parse CREATE TABLE statements into JSON schema.

Free URL encoder and decoder. Encode URLs for safe transmission. Decode percent-encoded URLs back to readable format.

Free XML formatter and validator. Beautify XML with proper indentation. Validate XML syntax and detect structural errors.

Free YAML to JSON converter. Transform YAML files into JSON format and vice versa. Bidirectional conversion with validation.