Compress AVIF to 100KB
Automatically compress any AVIF image to 100KB or less.
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How to compress AVIF
- Upload your AVIF (up to 50 MB).
- The compressor automatically targets 100 KB or under.
- Download the compressed AVIF — ready to upload.
Quick fact about AVIF
100 KB is a good target for AVIF on the web — sharp on screens, small enough for fast loads. AVIF's efficiency means a 100 KB AVIF looks like a 150-200 KB JPG.
Why compress AVIF?
100 KB is the most common web upload cap, and AVIF works excellently at this size. Because AVIF is 50% smaller than JPG at the same quality, a 100 KB AVIF looks like a 150-200 KB JPG — sharp on screens with excellent compression. This is useful for CMS platforms, CDNs, and forms with 100 KB limits.
Technical details
| Input format | AVIF |
| Output format | AVIF |
| Target size | 100 KB or under |
| Codec | AV1 |
| Iteration | Quality auto-tuned until target met |
| Typical quality | 75-85% at 100 KB |
| Transparency | Preserved |
| Encoding time | 3-5 seconds per image |
| Max file size | 50 MB per file |
| File retention | Auto-deleted after compression |
How the conversion works
The compressor decodes the AVIF image and re-encodes it using libavif at a lower quality setting. If the output exceeds 100 KB, it reduces quality (and if necessary, dimensions) until the target is met. At 100 KB, an AVIF is typically 1000-1400px wide with quality 75-85%.
When to compress AVIF
- Uploading AVIF to websites with a 100 KB cap.
- Optimizing AVIF for CDN delivery.
- Reducing bandwidth costs for image-heavy pages.
- Preparing AVIF images for mobile delivery.
- Marketplace AVIF listing with 100 KB cap.
- Email attachment (fast sending).
- Any platform with a 100 KB AVIF limit.
Quality considerations
100 KB is comfortable for AVIF — sharp on screens at normal viewing sizes. Expect 1000-1400px wide with quality 75-85%. AVIF at 100 KB looks like JPG at 150-200 KB.
Limitations and caveats
- 100 KB limits resolution — typically 1000-1400px wide.
- Very detailed originals may show slight softening.
- AV1 encoding is slower than other codecs (3-5 seconds per image).
- Not ideal for large-format print.
- For higher quality, use the 200 KB variant.
Compatibility
- Output opens in every browser since 2020.
- Native support in Windows 11, macOS Big Sur+, iOS 16+, Android 12+.
- Supported by WordPress via plugin, Ghost, Next.js.
- Native import in Photoshop 23.2+, GIMP 2.10.22+, Affinity Photo 2+.
- Ideal for modern CDN delivery.
Tips for best results
- 100 KB is the sweet spot for AVIF on the web.
- AVIF at 100 KB looks like JPG at 150-200 KB — AVIF's efficiency pays off.
- Resize to the target display size before uploading.
- AV1 encoding is slow — expect 3-5 seconds per image.
- Batch-compress up to 50 MB of AVIF files at once.
Compression levels explained
| Level | Size reduction | Best for |
|---|---|---|
| Auto-target 100 KB | Variable (until 100 KB) | Web, CDN, forms |
Target a specific file size
Need to hit an exact size? Use our dedicated target-size tools:
Common problems and fixes
- AVIF can't reach 100 KB without quality loss
- Very large originals may need resizing. Try cropping first, or use the 200 KB variant.
- Compression is slow
- AV1 encoding is CPU-intensive. Expect 3-5 seconds per image.
- AVIF looks soft at 100 KB
- Resize to the actual display size before uploading. Very large originals lose more detail.
Frequently asked questions
Explore related tools
Sources and references
Last reviewed: 2026-10-01