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1Code
1Code by 21st is an open-source client designed to enhance the experience of working with Claude Code.
Our verdict
Who it's for
Open-source client for parallel work with Claude Code, featuring a calm UI and powerful features.
Who should look elsewhere
Newer platform
Pros
- +AI code assistant
- +Good for debugging
- +Multiple languages
- +Active development
- +Fair pricing
Cons
- −Newer platform
- −Better alternatives exist
- −Learning curve
- −Feature gaps
- −Support varies
Key features
- ✓Code editor
- ✓Multi-language support
- ✓Syntax highlighting
- ✓Auto-completion
- ✓File management
- ✓Lightweight
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Free | $0 | month | Full source code access; Self-hosted on your machine; Community support via GitHub |
| Pro | $20 | month | Unlimited web & macOS apps access; Live browser previews; Full diff & PR workflow |
| Max | $200 | month | Everything in Pro; Personal support; Custom features on request |
Integrations
NotionLinearGitHubSlack