GIF to AVIF Converter
Convert GIF files (released 1987, Lossless (256-color palette)) to AVIF (Lossless + Lossy (AV1-based), typically 30–50% smaller than WebP at the same quality). Runs in your browser — no upload, no signup.
Based on 12,431+ conversions delivered
Teams convert GIF to AVIF mostly for compatibility: AVIF fits Bandwidth-critical pages with modern audiences and runs on Modern browsers (~90% since 2023), while GIF earns its place for Short looping animations on platforms that don't accept video. Standardising on AVIF across a pipeline — uploads, a CMS, a design system — removes the friction of mixed formats downstream. In our sample set, GIF files came out about 73% smaller as AVIF. This converter handles a single file or a large batch the same way, entirely in your browser with no upload. The sections below lay out the format trade-offs, the settings that matter, and the situations where a different target would serve you better.
Looking to programmatically convert GIF to AVIF?
Same engine, available as a JSON API. Drop a file or URL via REST and get the converted output back — no browser, no UI, no rate limits on paid tiers.
Sub-second response on common pairs
Webhook delivery for batch jobs
100+ format pairs supported
GIF vs AVIF — side-by-side
The numbers and capabilities at a glance, so you know what you're trading.
GIF
- Year released
- 1987
- Compression
- Lossless (256-color palette)
- Transparency
- Yes (1-bit, on/off only)
- Animation
- Yes
- Browser support
- Universal — older than the web
- Best for
- Short looping animations on platforms that don't accept video
AVIF
- Year released
- 2019 (AOMedia)
- Compression
- Lossless + Lossy (AV1-based)
- Transparency
- Yes
- Animation
- Yes
- Browser support
- Modern browsers (~90% since 2023)
- Best for
- Bandwidth-critical pages with modern audiences
Real GIF → AVIF file sizes
We ran a fixed set of sample images through this exact converter so you can see the typical size impact before converting your own files.
| Sample image | GIF size | AVIF size | Change |
|---|---|---|---|
| Photo | 70.6 KB | 17.8 KB | -75% smaller |
| Screenshot / UI | 786 B | 556 B | -29% smaller |
| Logo / transparency | 2.5 KB | 1.5 KB | -41% smaller |
Measured on a 256×256 sample set with this converter on 2026-05-28. Real-world files vary with resolution, colour and content.
Heads up before converting GIF → AVIF
What changes — and what your conversion will cost — based on how GIF and AVIF differ.
Older clients may not render AVIF
AVIF support: Modern browsers (~90% since 2023). Modern browsers and OS image viewers handle it natively, but legacy email clients, older CMS thumbnailers, and some print/design tools still don't. Confirm the downstream consumers in your pipeline accept AVIF before swapping at scale, or ship a GIF fallback for the long tail.
Chroma subsampling kicks in
GIF stores full-resolution colour channels. AVIF's default lossy mode subsamples chroma (typically 4:2:0) — half the colour information thrown away to save bytes. The effect is invisible on photos but visible on sharp text, fine lines, and saturated edges (chromatic aberration around text, halos on logos). For UI screenshots and graphic content, prefer a target without chroma subsampling (PNG, WebP-lossless, AVIF 4:4:4) instead.
Best practices for GIF → AVIF
Concrete settings to pick before you convert GIF to AVIF.
- Always preview the AVIF output before bulk-downloading — colour shifts, transparency surprises, and quality artifacts show up in the preview before they ship.
- Strip EXIF metadata if file size or privacy matters — camera GPS coordinates, timestamps, and serial numbers travel inside the image bytes by default.
- For photographic content, target a AVIF quality between 80 and 85 — that's the sweet spot where most encoders stop showing visible artifacts and the file size curve flattens.
- Verify the alpha channel rendered as expected — premultiplied vs straight alpha and edge halos around antialiased pixels are the most common surprises when going to AVIF.
- When converting to AVIF (animated), confirm the frame timing matches your source — some encoders default to a fixed 100ms delay per frame instead of preserving the original timing.
- For web AVIF delivery, encode in sRGB — wider colour spaces (Display P3, ProPhoto) render unpredictably across browsers and email clients.
When NOT to convert GIF → AVIF
Honest cases where this conversion is the wrong call — pick a different format or keep your GIF source.
Skip if your audience uses legacy browsers
AVIF doesn't render on every old browser, email client, or built-in OS viewer. If your traffic includes IE11, legacy Outlook, or older Android WebViews, stay on GIF (or a universal format like JPEG/PNG) — or ship AVIF alongside a fallback via the HTML <picture> element.
Skip if the file is bound for print
AVIF is a delivery-grade web format. Print pipelines (offset, large-format, packaging) expect TIFF, PDF, or high-bit-depth PNG with embedded ICC profiles and a CMYK option. Converting GIF to AVIF for a print job will likely fail prepress checks — keep the original or convert to a print-friendly format instead.
The importance of a good image conversion
Why getting GIF → AVIF right matters more than you think.
Frequently asked
The basics everyone asks before dropping a file.