| Feature | Tampermonkey | Violentmonkey | Greasemonkey | Safari Native | | :--- | :--- | :--- | :--- | :--- | | | Closed Source | Open Source | Open Source | Proprietary | | Telemetry | Yes (Analytics) | No | No | No | | Browsers | All (Chrome, FF, Edge, Safari, Opera) | Chrome, FF, Edge | Firefox Only | Safari Only | | API Support | Gold Standard | Excellent | Good (New API) | Basic | | Cloud Sync | Yes (Pro/Tampercloud) | Yes (Google/Dropbox/WebDAV) | No | Yes (iCloud Drive) | | Performance | Medium | Medium-Light | Light | Native (Best) | | User Base | 10M+ | 1M+ | <200k | N/A |
Apple integrated a userscript manager directly into the browser engine. tampermonkey alternative
Handles multiple storage requests well and is exceptionally lightweight. | Feature | Tampermonkey | Violentmonkey | Greasemonkey
Safari users on macOS who need a dedicated extension. Comparison of Top Userscript Managers (2026) Comparison of Top Userscript Managers (2026)