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NullPaste

Paste and share code online with syntax highlighting

Share code online with a clean, syntax-highlighted link in seconds. Supports 100+ languages, auto-detected. No account required.

NullPaste is a fast, anonymous tool for pasting and sharing code online. Get a clean, syntax-highlighted link in seconds — no account, no ads, no tracking.

  1. Open NullPaste

    Go to nullpaste.org. No account or sign-up — the code editor is ready immediately.

  2. Paste your code

    Drop in your code snippet. The editor supports up to 1 MB — enough for large files.

  3. Set the language (optional)

    NullPaste auto-detects the programming language for syntax highlighting. To override it, type the language name in the Language field (e.g. python, typescript, sql).

  4. Choose privacy options

    Add a password if the snippet is sensitive, or enable burn-after-read for a one-time share. Set an expiry so stale snippets don't linger.

  5. Share the highlighted link

    Click Create paste and copy the URL. The recipient sees fully syntax-highlighted code — no account, no plugin required.

Supported languages (auto-detected)

Syntax highlighting is powered by Shiki and covers 100+ languages. Common ones include:

  • JavaScript
  • TypeScript
  • Python
  • Rust
  • Go
  • Java
  • C / C++
  • C#
  • PHP
  • Ruby
  • Swift
  • Kotlin
  • SQL
  • Bash / Shell
  • YAML
  • JSON
  • HTML
  • CSS
  • Markdown
  • Dockerfile
  • Terraform
  • GraphQL
  • + 80 more

When to use NullPaste for code

  • Sharing a snippet in a support ticket, Slack, or Discord
  • Sending a config file or deployment script to a colleague
  • Posting a code review diff when your editor doesn't have a built-in share feature
  • Sharing a one-time debug output — use burn-after-read so it disappears after one view
  • Sharing sensitive credentials or keys — use end-to-end encryption so the server never sees the content

Frequently asked questions

What is the easiest way to paste code online?
Open NullPaste, paste your code, and click Create Paste. You get a syntax-highlighted shareable link in under 10 seconds — no account, no sign-up, no configuration.
Does NullPaste have syntax highlighting for code?
Yes. NullPaste uses Shiki for syntax highlighting and supports 100+ programming languages. The language is auto-detected from your code — you can also set it manually via the Language field.
Which programming languages does NullPaste support?
NullPaste supports 100+ languages via Shiki including JavaScript, TypeScript, Python, Go, Rust, Java, C/C++, C#, PHP, Ruby, Swift, Kotlin, SQL, Bash, YAML, JSON, TOML, Markdown, Dockerfile, Terraform, GraphQL, and many more.
Does the recipient need an account to view the code?
No. Anyone with the link can view the syntax-highlighted code in their browser without an account, sign-up, or plugin.
How do I share code privately?
Add a password to restrict access to people who know it, or enable end-to-end encryption so the server never sees the plaintext and only someone with the full URL (including the key fragment) can decrypt the content.
Can I set my pasted code to expire?
Yes. Choose an expiry of 10 minutes, 1 hour, 1 day (the default), 1 week, or never. The paste is permanently deleted when the timer runs out. Use burn-after-read to delete the paste after its first confirmed view.

Related

Create a paste