Free picks · Web · Open source
Best free open-source online file management tools (2026)
Every pick is listed under File Management in our directory, runs in a web browser and is free to use and tagged open source. We rank them by our rating and popularity, then favour tools made mainly for file management and apps built for the browser.
Short answer
The best free open-source online file management tools are Stirling PDF, Nextcloud and LocalSend, the top three of 9 matches in our directory. All 9 are tagged open source in our directory. 3 of the 9 picks are completely free and the other 6 have a free plan.
Updated
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At a glance
Counted from the top 9 picks, except the total.
- Matching tools
- 9
- Completely free
- 3
- Open source
- 9
- Browser-only
- 4
- Also have apps
- 5
Comparison table
“Free plan” means a free tier with paid upgrades. A dash in Licence means our directory does not list the tool as open source.
| # | Name | Pricing | Platforms | Licence | Why pick it |
|---|---|---|---|---|---|
| 1 | Stirling PDF | Free plan | Web, Windows, macOS, Linux | Open source | An open-source PDF toolkit with 60+ tools you can host yourself. |
| 2 | Nextcloud | Free | Web, Windows, macOS, Linux, Android, iOS | Open source | Open-source, self-hosted file sync and sharing: your own Dropbox. |
| 3 | LocalSend | Free | Windows, macOS, Linux, Android, iOS, Web | Open source | Free, open-source AirDrop for every device on your Wi-Fi. |
| 4 | SkySend | Free | Web | Open source | End-to-end encrypted file and note sharing. |
| 5 | Filen | Free plan | Web, Windows, macOS, Linux, iOS, Android | Open source | Zero-knowledge encrypted cloud storage from Germany, with free space at sign-up. |
| 6 | DocuSeal | Free plan | Web | Open source | Open-source e-signatures you can self-host for free, with a free cloud plan. |
| 7 | Documenso | Free plan | Web | Open source | The open-source DocuSign alternative, free for 5 documents a month. |
| 8 | OpenSign | Free plan | Web | Open source | A free, open-source DocuSign alternative with unlimited e-signatures. |
| 9 | TagSpaces | Free plan | Windows, macOS, Linux, Web, iOS, Android | Open source | Tag and organise your local files and folders, with an open-source free edition. |
Why each pick made the list
Every reason is taken from the tool's own listing: its categories, platforms, features, rating and pricing.
Our top web pick, rated 4.6/5. File Management is its main purpose in our directory. Use it in the browser, or on Windows, macOS and Linux. Its listing says it is privacy-focused.
Watch out for: Self-hosting takes some setup
Number 2 of 9 for web, rated 4.4/5. File Management is its main purpose in our directory. Use it in the browser, or on Windows, macOS, Linux, Android and 1 more platform. Its listing says it syncs through the cloud and is privacy-focused.
Watch out for: Running your own server takes time and skill
Number 3 of 9 for web, rated 4.7/5, the highest here. File Management is its main purpose in our directory. Use it in the browser, or on Windows, macOS, Linux, Android and 1 more platform. Its listing says it is privacy-focused and is easy to pick up.
Watch out for: Both devices must be on the same network
Number 4 of 9 for web, rated 4.4/5. File Management is its main purpose in our directory. It runs in the browser only, so there is nothing to install. Its listing says it is privacy-focused and is easy to pick up.
Watch out for: Fewer extras than big providers
Number 5 of 9 for web, rated 4.3/5. File Management is its main purpose in our directory. Use it in the browser, or on Windows, macOS, Linux, iOS and 1 more platform. Its listing says it syncs through the cloud, is privacy-focused and is easy to pick up.
Watch out for: Free 10 GB is not granted when signing up through a VPN or proxy
Number 6 of 9 for web, rated 4.5/5. Listed mainly under Workflows, it also covers file management. It runs in the browser only, so there is nothing to install. Its listing says it is privacy-focused and is easy to pick up.
Watch out for: No reminders or SMS on the free cloud plan
Number 7 of 9 for web, rated 4.4/5. Listed mainly under Workflows, it also covers file management. It runs in the browser only, so there is nothing to install. Its listing says it is privacy-focused and is easy to pick up.
Watch out for: Free plan is capped at 5 documents a month
Number 8 of 9 for web, rated 4.3/5. Listed mainly under Workflows, it also covers file management. It runs in the browser only, so there is nothing to install. Its listing says it syncs through the cloud and is easy to pick up.
Watch out for: Advanced features are in paid plans
Number 9 of 9 for web, rated 4.3/5. File Management is its main purpose in our directory. Use it in the browser, or on Windows, macOS, Linux, iOS and 1 more platform. Its listing says it is privacy-focused and is easy to pick up.
Watch out for: Some features are Pro only
Running these on Web
Counted from each pick's listing type and platforms.
- By listing type, the 9 web picks are 7 web apps (Stirling PDF, Nextcloud, SkySend, Filen and 3 others) and 2 desktop apps (LocalSend and TagSpaces).
- Browser only, nothing to install: SkySend, DocuSeal, Documenso and OpenSign.
- 5 picks also have an app listed for another platform, and 4 of 9 have a phone app (iPhone or Android).
How this list compares
The same search on other platforms, and the other price filter. Only the differences are named.
- Free online file management tools
Fine with closed source? The wider free web list ranks 15 tools that run in a web browser, open source or not, led by Google Drive, PDF24 Tools and Kitbitz.
Frequently asked questions
- What is the best free open-source online file management tool?
- Stirling PDF is our first pick. An open-source PDF toolkit with 60+ tools you can host yourself. Stirling PDF has a free plan, with paid plans that unlock more features or usage.
- Are these file management tools really free?
- Yes, every pick is free to start. Nextcloud, LocalSend and SkySend are completely free. Stirling PDF, Filen, DocuSeal, Documenso and 2 others have free plans with paid upgrades.
- Do these open-source file management tools work on other platforms too?
- 5 picks of 9 also run elsewhere, including Stirling PDF (Windows, macOS and Linux), Nextcloud (Windows, macOS and Linux) and LocalSend (Windows, macOS and Linux).
- Which are easiest for beginners?
- LocalSend, SkySend and Filen are rated beginner-friendly, along with 4 other picks. 2 picks take more time to learn.
- How many free open-source online file management tools are in the directory?
- 9 match right now, and all of them are on this page. New tools are added as they are checked.
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