Explore free Cloud Storage & File Sharing APIs available for developers. Browse our collection of public APIs in the Cloud Storage & File Sharing category, each verified and documented for easy integration into your projects.
Last verified: November 12, 2026
| Name | Description | Auth | HTTPS | CORS | Uptime (30 days) |
|---|---|---|---|---|---|
| BasePic | Image hosting API: upload with one request, then rotate, crop, resize or filter. Free limits of 60 uploads per hour per IP, no key needed. | none | Yes | no | 100% (5 checks) |
| Box | File Sharing and Storage | oauth | Yes | unknown | 100% (5 checks) |
| ddownload | File Sharing and Storage | apikey | Yes | unknown | 100% (5 checks) |
| Deed | Publish an HTML file or folder to a permanent public URL with one PUT, no account | none | Yes | yes | 100% (4 checks) |
| Delta Lake | Open-source storage framework enabling Lakehouse architecture with Spark, PrestoDB, Flink, Trino, Hive, and APIs | none | Yes | unknown | 100% (5 checks) |
| Dropbox | File Sharing and Storage | oauth | Yes | unknown | 100% (5 checks) |
| Fil One | S3-compatible object storage API (formerly Web3 Storage) | apikey | Yes | yes | 100% (5 checks) |
| Filestack | Filestack File Uploader & File Upload API | apikey | Yes | unknown | 100% (5 checks) |
| FileUp | Temporary file hosting with upload API, expiration times, and view limits | none | Yes | unknown | 100% (5 checks) |
| Gcore Storage | S3-Compatible Object Storage is a fast and scalable cloud storage system by Gcore that gives you an opportunity to store and retrieve any amount of data at any time. High-performance storage for use as a CDN origin. | apikey | Yes | yes | 100% (5 checks) |
| GoFile | Unlimited size file uploads for free | apikey | Yes | unknown | 100% (5 checks) |
| Google Drive | File Sharing and Storage | oauth | Yes | unknown | 100% (5 checks) |
| Gyazo | Save & Share screen captures instantly | apikey | Yes | unknown | 100% (5 checks) |
| Imgbb | Simple and quick private image sharing | apikey | Yes | unknown | 100% (5 checks) |
| OneDrive | File Sharing and Storage | oauth | Yes | unknown | 100% (5 checks) |
| Pastebin | Plain Text Storage | apikey | Yes | unknown | 100% (5 checks) |
| Pinata | IPFS Pinning Services API | apikey | Yes | unknown | 100% (5 checks) |
| Quip | File Sharing and Storage for groups | apikey | Yes | yes | 100% (5 checks) |
| Revdoku | Cloud file storage, version history, sharing and incoming email attachments | apikey | Yes | unknown | 100% (5 checks) |
| Smash | Upload large files on websites, mobile apps, SaaS solutions and custom workflows | apikey | Yes | yes | 100% (5 checks) |
| Storj | Decentralized Open-Source Cloud Storage | apikey | Yes | unknown | 100% (5 checks) |
4 of these APIs require no authentication — you can start making requests immediately without signing up for an account. Just pick one from the table above, check its documentation, and send your first request.
13 APIs in this category require a free API key. This usually means creating a free account on the provider's website and copying your key from the dashboard. The process typically takes less than a minute.
Not sure where to start? Check the uptime column: it shows how often each API's documentation responded to our daily checks over the last 30 days, and the dot shows whether it responded at the latest check. For browser-based projects, check that the API supports CORS.
Yes, all APIs listed on API Bouncer have a free tier. Some are completely open (no sign-up needed), while others require a free account to get an API key. Free tiers typically have rate limits — check each API's documentation for specifics.
It depends on your needs. Consider: Do you need authentication or prefer no-auth? Does your project need CORS support for browser access? How many requests will you make? Start with a no-auth API to prototype quickly, then switch to a more feature-rich option if needed.
We run periodic health checks on all listed APIs. The "Status" column shows whether each API was responding at our last check. APIs marked as "alive" were recently verified. You can also test any API yourself using curl or our guides on testing APIs.
Most free APIs allow commercial use, but terms vary by provider. Always check the specific API's terms of service. Some APIs have separate free and commercial tiers with different rate limits.
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