# CodeToPDF > Free online developer tools — convert code to PDF, format JSON, decode JWTs, generate UUIDs, test regex, and more. 19+ tools, all free, no signup required. Most tools run 100% in your browser for instant, private results. ## About CodeToPDF is a growing suite of free, instant, and privacy-first developer utilities. Founded by Kaushal Chhaunkar, the platform was built to solve a simple problem — converting source code into beautiful, syntax-highlighted PDFs — and has since expanded into a full toolkit covering formatters, encoders, generators, and everyday dev utilities. - **100% free**: No hidden paywalls, no credits, no "freemium" limits. - **No signup required**: Open a tool and use it immediately. - **Privacy-first**: Client-side tools never send data to any server. Server-side tools (PDF conversion) permanently delete files immediately after processing. ## PDF Tools - [Code to PDF](https://www.codetopdf.com/tools/code-to-pdf): Convert source code to syntax-highlighted PDFs. Supports 50+ languages including JavaScript, Python, Go, Rust, Java, C++, and more. Upload files, pick a theme, download instantly. - [Python Code to PDF](https://www.codetopdf.com/tools/python-code-to-pdf): Run Python scripts in a secure cloud sandbox and download generated PDFs, charts, and reports. Pre-loaded with PyMuPDF, ReportLab, Matplotlib, Pandas, Seaborn. - [Markdown to PDF](https://www.codetopdf.com/tools/markdown-to-pdf): Convert Markdown to professionally styled PDFs preserving headings, code blocks, tables, and lists. - [HTML to PDF](https://www.codetopdf.com/tools/html-to-pdf): Convert HTML with CSS to pixel-accurate PDFs. Supports flexbox, tables, Google Fonts. Great for reports and invoices. - [Node.js Code to PDF](https://www.codetopdf.com/tools/nodejs-code-to-pdf): Run Node.js scripts in a secure cloud sandbox and download generated PDFs and files. Pre-loaded with pdfkit and jspdf. - [LaTeX to PDF](https://www.codetopdf.com/tools/latex-to-pdf): Compile LaTeX documents online directly in the cloud. Downloads beautifully typeset PDFs using pdflatex. - [Web Link to PDF](https://www.codetopdf.com/tools/web-link-to-pdf): Convert any public URL to a PDF instantly. Captures web pages with CSS styles intact. ## Formatters - [JSON Formatter](https://www.codetopdf.com/tools/json-formatter): Format, beautify, and indent JSON with syntax validation. Runs in browser. - [JSON Validator](https://www.codetopdf.com/tools/json-validator): Validate JSON syntax with precise error locations (line + column). - [JSON Compare](https://www.codetopdf.com/tools/json-compare): Diff two JSON objects side-by-side. Shows added, removed, and changed keys with dot-notation paths. - [SQL Formatter](https://www.codetopdf.com/tools/sql-formatter): Format SQL queries. Supports MySQL, PostgreSQL, SQLite, T-SQL, BigQuery. - [HTML Formatter](https://www.codetopdf.com/tools/html-formatter): Format and indent HTML markup with configurable indentation. - [CSS Formatter](https://www.codetopdf.com/tools/css-formatter): Expand and beautify minified CSS stylesheets. - [XML Formatter](https://www.codetopdf.com/tools/xml-formatter): Format and validate XML documents with namespace support. - [YAML Formatter](https://www.codetopdf.com/tools/yaml-formatter): Format YAML and convert between YAML and JSON. Supports Kubernetes configs, CI/CD pipelines, Ansible playbooks. ## Encoders & Decoders - [Base64 Encode](https://www.codetopdf.com/tools/base64-encode): Encode text or data to Base64. Supports standard and URL-safe Base64. - [Base64 Decode](https://www.codetopdf.com/tools/base64-decode): Decode Base64 strings back to plain text with error detection. - [JWT Decoder](https://www.codetopdf.com/tools/jwt-decoder): Decode JWT tokens and inspect header, payload, expiry, and claims. Decode-only — token never leaves your browser. ## Generators - [UUID Generator](https://www.codetopdf.com/tools/uuid-generator): Generate cryptographically secure v4 UUIDs. Bulk generate up to 100 at once. - [QR Code Generator](https://www.codetopdf.com/tools/qr-generator): Generate QR codes for URLs, text, or data. Download as PNG or SVG. Customise size, colours, error correction. ## Utilities - [Regex Tester](https://www.codetopdf.com/tools/regex-tester): Test regex patterns with live match highlighting, capture groups, and flag support (g, i, m, s). - [Unix Timestamp Converter](https://www.codetopdf.com/tools/unix-timestamp): Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds. - [Markdown Preview](https://www.codetopdf.com/tools/markdown-preview): Live Markdown preview with GitHub Flavored Markdown rendering side-by-side. - [JSON to TypeScript](https://www.codetopdf.com/tools/json-to-typescript): Convert JSON payloads directly into valid TypeScript interfaces instantly. ## Other Pages - [All Tools](https://www.codetopdf.com/tools): Browse the full directory of 19+ developer tools. - [About](https://www.codetopdf.com/about): Our story, mission, and team. - [Features](https://www.codetopdf.com/features): Platform features and capabilities. - [Pricing](https://www.codetopdf.com/pricing): All tools are free. Optional credits for high-volume PDF conversion. - [Contact](https://www.codetopdf.com/contact): Get in touch. - [Security](https://www.codetopdf.com/security): Security practices and data handling. - [Privacy Policy](https://www.codetopdf.com/privacy): Privacy policy. - [Terms of Service](https://www.codetopdf.com/terms): Terms of service.