Best Cloud Storage & File Sharing APIs in 2026

The top 15 of 19 free Cloud Storage & File Sharing APIs, ranked by how easy they are to start with (API key, HTTPS, CORS), how reliable they are in our daily health checks, and what developers rate them. Pantry API takes the top spot.

Last tested Oct 24, 2026 · Rankings update daily

1P
Pantry API
Online · 870 ms
Free JSON storage for small projects.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
2
FileUp API
Online · 745 ms
Temporary file hosting with upload API, expiration times, and view limits.
- No API key needed
- HTTPS
No authHTTPSCORS ?
3F
File.io API
Online · 855 ms
Super simple file sharing, convenient, anonymous and secure.
- No API key needed
- HTTPS
No authHTTPSCORS ?
4T
The Null Pointer API
Online · 677 ms
No-bullshit file hosting and URL shortening service.
- No API key needed
- HTTPS
No authHTTPSCORS ?
5
Quip API
Online · 3188 ms
File Sharing and Storage for groups.
- Callable from the browser (CORS)
- HTTPS
apiKeyHTTPSCORS
6
ddownload API
Online · 759 ms
ddownload.com - Fast and Free File Hosting.
- HTTPS
apiKeyHTTPSCORS ?
7
Filestack API
Online · 411 ms
Filestack File Uploader & File Upload API.
- HTTPS
apiKeyHTTPSCORS ?
8
GoFile API
Online · 476 ms
Unlimited size file uploads for free.
- HTTPS
apiKeyHTTPSCORS ?
9
Gyazo API
Online · 497 ms
Save & Share screen captures instantly.
- HTTPS
apiKeyHTTPSCORS ?
10
Imgbb API
Online · 469 ms
Simple and quick private image sharing.
- HTTPS
apiKeyHTTPSCORS ?
11
Pastebin API
Online · 641 ms
Pastebin.com is the number one paste tool since 2002.
- HTTPS
apiKeyHTTPSCORS ?
12
Pinata API
Online · 797 ms
Start uploading and retrieving content in no time.
- HTTPS
apiKeyHTTPSCORS ?
13
Storj API
Online · 786 ms
Make the world your datacenter.
- HTTPS
apiKeyHTTPSCORS ?
14
Revdoku API
Online · 520 ms
Cloud file storage, version history, sharing and incoming email attachments.
- HTTPS
apiKeyHTTPSCORS ?
15
Box API
Online · 760 ms
Build with the Box Platform.
- HTTPS
OAuthHTTPSCORS ?

Cloud Storage & File Sharing APIs compared

Top Cloud Storage & File Sharing APIs compared
API	API key	HTTPS	CORS	Uptime	Response	Rating
Pantry	No	Yes	Yes	Up	870 ms	Not rated
FileUp	No	Yes	Unknown	Up	745 ms	Not rated
File.io	No	Yes	Unknown	Up	855 ms	Not rated
The Null Pointer	No	Yes	Unknown	Up	677 ms	Not rated
Quip	Required	Yes	Yes	Up	3188 ms	Not rated
ddownload	Required	Yes	Unknown	Up	759 ms	Not rated
Filestack	Required	Yes	Unknown	Up	411 ms	Not rated
GoFile	Required	Yes	Unknown	Up	476 ms	Not rated
Gyazo	Required	Yes	Unknown	Up	497 ms	Not rated
Imgbb	Required	Yes	Unknown	Up	469 ms	Not rated

More Cloud Storage & File Sharing APIs

Best Cloud Storage & File Sharing API FAQ

What is the best free Cloud Storage & File Sharing API in 2026?

Based on access, reliability and developer ratings, the top free Cloud Storage & File Sharing APIs right now are Pantry API, FileUp API and File.io API. Pantry API ranks first. Rankings update daily from health checks of all 19 Cloud Storage & File Sharing APIs in the directory.

What is the best Cloud Storage & File Sharing API without an API key?

Pantry API, FileUp API and File.io API need no API key, so you can call them without signing up. 4 of the 19 ranked Cloud Storage & File Sharing APIs are keyless.

Which Cloud Storage & File Sharing API works from the browser?

Pantry API, Quip API and Web3 Storage API support CORS over HTTPS, so front-end JavaScript can call them directly without a proxy.

How are these APIs ranked?

Each API gets a score from: no API key (+), HTTPS (+), CORS support (+), 30-day uptime and response time from our daily health checks, and ratings from developers on this site. APIs that failed three checks in a row are left out until they recover.