All Free Developer Tools

Format, validate, and beautify JSON instantly in your browser.

Validate JSON syntax and check for errors instantly.

Compress JSON by removing whitespace for smaller payloads.

Compare two JSON objects side by side and find differences.

Format and prettify XML documents with proper indentation.

Format and validate YAML configuration files.

Format SQL queries with proper indentation and keyword casing.

Format and indent HTML markup for readability.

Format and beautify CSS stylesheets.

Format and beautify JavaScript code.

Test regular expressions with live match highlighting.

Decode JWT tokens locally — header, payload, and claims.

Encode text to Base64 instantly.

Decode Base64 strings to plain text.

Preview and download images from Base64 strings.

Convert images to Base64 data URIs.

Percent-encode strings for URLs and query parameters.

Decode percent-encoded URL strings.

Generate random UUIDs (v4) instantly.

Generate MD5, SHA-1, and SHA-256 hashes.

Convert Unix timestamps to dates and back.

Parse cron expressions into human-readable schedules.

Generate placeholder text for designs and prototypes.

Generate QR codes from text or URLs.

Convert between HEX, RGB, and HSL color formats.

Convert length, weight, temperature, and data units.

Compare two text blocks and highlight differences.

Live Markdown editor with rendered HTML preview.

Build and test HTTP requests — lightweight Postman alternative.

Format, parse, and convert cURL commands.

Convert Word documents to PDF format.

Convert PDF files to editable Word documents.

Convert JPEG images to PNG format.

Convert PNG images to JPEG format.

Convert images to PDF documents.

Convert PDF pages to PNG or JPEG images.

Convert CSV data to JSON arrays.

Convert JSON arrays to CSV format.

Convert XML documents to JSON format.

Convert JSON data to XML format.

Convert Markdown text to HTML.

Convert HTML to Markdown format.

Convert YAML to JSON format.

Convert JSON to YAML format.

Convert plain text files to PDF.

Reduce PDF file size.

Combine multiple PDFs into one document.

Split PDF files by page range.

Resize images to custom dimensions.

Compress images without uploading to a server.

Look up and convert between MIME types.

Format petrol/fuel bills for reimbursement claims.

Generate driver trip logbooks for reimbursement.

Generate travel expense reimbursement summaries.

Convert expense lists into structured summaries.

Calculate and track monthly fuel expenses.

Generate rent receipt templates for HRA claims.

Calculate HRA exemption and taxable amounts.

Understand every field on your salary slip.

Organize and merge bill PDFs for reimbursement.

Convert receipt details into structured expense rows.

Export expense data as CSV for spreadsheets.

Understand JSON structure, types, and nested fields instantly.

Get a quick overview of any code snippet's structure and purpose.

Convert code snippets between programming languages.

Generate regex patterns from natural language descriptions.

Understand stack traces and error messages with actionable hints.

Count errors, warnings, and extract key log lines from server output.

Generate API docs from sample JSON responses.

Generate SQL queries from natural language descriptions.

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