Postimages (postimg.cc) is a free, anonymous-friendly image host popular for forum posts. It works, but there's no API, no on-the-fly resize, no animated-WebP conversion, and no custom domain. swiftimg keeps the zero-friction anonymous upload and adds a clean REST API, transforms, signed URLs, and white-label delivery.
swiftimg vs Postimages at a glance
| Feature | swiftimg | Postimages |
|---|---|---|
| REST API & CLI | Yes | No (web only) |
| On-the-fly resize / format | Yes (signed) | No |
| Animated GIF → WebP | Automatic | No |
| Custom domain (white-label) | From $9/mo | No |
| Anonymous upload | Yes | Yes |
| OpenGraph + oEmbed unfurl | Yes | Limited |
| Free plan | Yes (no account) | Yes (no account) |
List prices as of 2026 for context — directional, not apples-to-apples. Check each provider for current pricing.
When Postimages is the better choice
Postimages if your only requirement is the simplest possible web-only upload-and-paste flow with no plans to grow into an API.
swiftimg vs Postimages — FAQ
Will my old postimg.cc links keep working?
Yes — Postimages hosts your existing uploads. You can keep them there and use swiftimg for new uploads, or re-upload to consolidate.
Is swiftimg as anonymous-friendly?
Yes. Anonymous uploads work without an account, return a delete token, and don't expire — same model as Postimages, with API + transforms on top.
Why pay for an alternative if Postimages is free?
If you need an API, on-the-fly transforms, or a custom domain to embed images under your brand, Postimages doesn't have those — swiftimg's free tier still does anonymous web upload for the same use case.
Ready to switch from Postimages?
Start free, then unlock the full API, transforms, signed URLs, and a custom domain on the Developer plan.