The free online code snippet manager built for developers.
code.transferx is a fast, local-first workspace to save, organize, run, share, and export code snippets. Syntax highlighting for 20+ languages, a JavaScript runner, real-time collaboration, and a Carbon-style code-to-image exporter, all in your browser, all free.
- Free forever
- No signup
- Runs in your browser
- Open source-friendly
One workspace, three tools
Everything a developer keeps reaching for.
code.transferx bundles the three tools that should live next to your editor: a snippet manager, a code screenshot maker, and a planning surface. They share the same shortcuts, theme, and offline-first storage.
Code Snippet Manager
Save, organize, search, and tag your code snippets in a fast, keyboard-driven editor with Shiki syntax highlighting for 20+ languages.
- Local-first: snippets live in your browser
- Run JavaScript inline without leaving the editor
- Import and export full libraries as JSON
- Generate read-only public share links
Code to Image
Turn any source file into a beautiful, high-resolution PNG. A free Carbon and Ray.so alternative built for blog posts, README banners, and social media.
- 20+ premium themes with custom backgrounds
- Adjustable padding, fonts, and window controls
- PNG export at retina resolution
- No account, no watermark on free use
Developer Todo Workspace
A lightweight, Notion-style task workspace built for developers. Switch between board, table, and list views and share lists publicly with a single click.
- Kanban board, table, and list views
- Priority, status, and due-date tracking
- Shareable read-only public lists
- Works offline, no signup required
Built like a developer tool, priced like a hobby project.
Every feature in code.transferx is free, with no usage caps or signup gate. The product is funded by being small, focused, and intentionally local-first.
Syntax highlighting for 20+ languages
Powered by Shiki. JavaScript, TypeScript, Python, Go, Rust, Java, C, C++, Ruby, PHP, SQL, Markdown, and more, with editor-quality grammars.
Run JavaScript instantly
Execute snippets right in the browser with an output panel. No installs, no separate playground, no copy-paste juggling.
Real-time collaboration
Open a collaboration room and code together with shared cursors, presence, and conflict-free Yjs synchronization.
Local-first, privacy first
Snippets are stored on your device by default. We only touch the network when you opt in to share or export.
Code to image export
Export any snippet as a polished PNG with custom themes, fonts, and backgrounds. Carbon-style screenshots in seconds.
Installable Progressive Web App
Install code.transferx on macOS, Windows, Linux, iOS, or Android and keep working on snippets and todos offline.
Who uses code.transferx?
From senior engineers building a personal snippet vault to tech content creators making clean screenshots, the workflow fits whoever lives in code.
- Engineers & senior developers
- Build a personal snippet vault of patterns, regexes, shell one-liners, and SQL recipes you reach for every week.
- Tech content creators
- Generate clean code screenshots for blog posts, X/Twitter threads, and YouTube thumbnails without leaving your browser.
- Bootcamp students & learners
- Save the snippets you learn each day, run JavaScript examples inline, and keep an organized study log offline.
- Distributed teams
- Share a collaboration link and pair on a snippet in real time, then export the result to a shareable image or JSON file.
Frequently asked questions
Common questions about how the snippet manager, code-to-image tool, and todo workspace work.
Is code.transferx really free to use?
Yes. code.transferx is a 100% free online code snippet manager. Every feature - syntax highlighting, code-to-image export, the JavaScript runner, todo workspace, and real-time collaboration - is available without a paywall, signup, or credit card.
Do I need to create an account to save snippets?
No. code.transferx is local-first, so your snippets are saved directly in your browser. You can start writing, organizing, and sharing code instantly without signing up.
Where are my code snippets stored?
Snippets live in your browser's local storage on your device. Nothing is uploaded to a server unless you explicitly create a public share link, which generates a read-only URL.
Which programming languages support syntax highlighting?
code.transferx ships with Shiki-powered syntax highlighting for 20+ languages including JavaScript, TypeScript, Python, Go, Rust, Java, C, C++, C#, Ruby, PHP, HTML, CSS, JSON, YAML, SQL, Bash, Markdown, and more.
Can I export code as an image like Carbon or Ray.so?
Yes. The built-in Code to Image tool exports any snippet as a high-resolution PNG with customizable themes, fonts, padding, and background colors - perfect for blog posts, documentation, and social media.
Can I run JavaScript inside the editor?
Yes. JavaScript snippets can be executed directly in the browser. Output is shown in an inline panel without leaving the editor or installing anything locally.
Can I collaborate with my team in real time?
Yes. Open a collaboration room and share the link to edit code together with shared cursors, presence indicators, and conflict-free synchronization powered by Yjs.
How do I share a snippet with someone?
Use the share button on any snippet to generate a read-only public URL. Anyone with the link can view the snippet with full syntax highlighting - no account required.
Is code.transferx open to use offline?
Yes. Because the app is local-first and installable as a Progressive Web App, you can keep working on your snippets, todo lists, and code-to-image exports even without an internet connection.
Start saving snippets in under 10 seconds.
No signup, no install, no setup. Open the editor and your local-first snippet library is ready.