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NullPaste

How to share code snippets

Share code snippets with a clean, syntax-highlighted link in seconds — no account needed. A step-by-step guide using NullPaste.

Pasting code into a chat window usually mangles the formatting and loses syntax highlighting. NullPaste gives you a clean, highlighted, shareable link in a few seconds — no account required.

  1. Open a new paste

    Go to the NullPaste home page. There is no sign-up — the editor is ready immediately.

  2. Paste your code

    Drop your snippet into the editor (up to 1 MB). The language is auto-detected for syntax highlighting, or type the language name to set it explicitly.

  3. Pick an expiry

    Choose how long the snippet should live — from 10 minutes to never. Use a short expiry for one-off reviews and 'never' for snippets you want to keep — every paste gets a delete code either way.

  4. Create and copy the link

    Hit Create paste and copy the short URL. Share it in chat, a ticket, or an email — anyone with the link sees the highlighted code.

Where to use it

  • Sharing a snippet in Slack, Discord, or Teams without mangling indentation
  • Attaching code to a support ticket or bug report
  • Quick code review when your editor does not have a built-in share feature
  • Sharing sensitive credentials — use end-to-end encryption
  • One-time debug output — use burn-after-read so it disappears after one view

Frequently asked questions

What is the best way to share code snippets online?
Open NullPaste, paste your code, and click Create Paste. You get a syntax-highlighted, shareable link in seconds — no account, no Git knowledge, no setup. The language is auto-detected.
Does NullPaste auto-detect the programming language?
Yes. NullPaste uses Shiki for syntax highlighting and automatically detects the language from your code in most cases. You can override the detection by typing a language name in the Language field.
How do I set the language manually for a code snippet?
Type the language name in the Language field when creating the paste — for example: python, typescript, go, rust, sql, dockerfile. If you leave it blank, NullPaste attempts to detect it automatically.
Can I share code snippets privately?
Yes. Add a password so only people who know it can open the link. For stronger privacy, enable end-to-end encryption — the code is encrypted in your browser, the server stores only ciphertext, and the key travels only in the link's #key fragment.
Does the recipient need an account to view the shared code?
No. Anyone with the link can view the syntax-highlighted code in their browser with no account, no sign-up, and no plugin required.
How many programming languages does NullPaste support?
NullPaste supports 100+ languages via Shiki syntax highlighting, including JavaScript, TypeScript, Python, Go, Rust, Java, C/C++, C#, PHP, Ruby, Swift, Kotlin, SQL, Bash, YAML, JSON, Markdown, Dockerfile, Terraform, and many more.

Related

Create a paste