AVIF to JPG: what it does and how to use it

Convert AVIF images into JPG, PNG or WebP without uploading anything. AVIF is a modern format that compresses far better than JPEG, which is why sites use it - and also why plenty of older apps, printers and platforms still cannot open one. This tool decodes AVIF with your browser own engine and re-encodes it to the format you need, in batch, with a quality slider and a size comparison for every file. Because AVIF supports transparency and JPG does not, it also detects transparent areas and lets you choose the colour they are flattened onto rather than silently turning them black.

Most people open this because a photo is too big, in the wrong format, or they do not want to install an editor for a two-minute job.

AVIF to JPG is a good fit when opening an AVIF you were sent when your software does not support the format.

The useful part

AVIF to JPG is built around a few practical wins, not a long feature list:

• Batch conversion - drop a folder of AVIF files and convert them all in one pass.
• Quality slider, so you decide the trade-off instead of accepting a fixed setting.
• Transparency is handled honestly: JPG flattening uses a background colour you pick, and the tool tells you when it happened.
• Before and after file sizes for every image, plus a total for the batch.
• Runs entirely in your browser - no upload, no account, no watermark.
• Tells you up front if your browser cannot decode AVIF, rather than failing silently.

Do this, in order

1. Add your AVIF files. Click or drop one or many .avif images. Everything is decoded on your device - nothing is uploaded.
2. Choose the output. JPG for the smallest, most compatible file; PNG or WebP when the image has transparency you need to keep.
3. Download. Save images one by one, or grab the whole batch as a ZIP.

Who it is for

• Opening an AVIF you were sent when your software does not support the format.
• Converting AVIF product photos for a shop platform that only accepts JPG.
• Preparing AVIF screenshots for a document or presentation tool.
• Turning AVIF images into PNG so transparency survives for a design file.
• Batch converting a folder of AVIF exports before handing them to a client.
• Making an AVIF usable in older software that predates the format.

If you want a clean result

• Quality 90 to 95 is visually indistinguishable from the original for most photos.
• If the image has transparency, pick PNG or WebP - JPG cannot store an alpha channel.
• Set the background colour before converting to JPG if white is not what you want behind transparent areas.
• Converting to JPG usually makes the file BIGGER, because AVIF compresses better than JPEG.
• Use the ZIP download when converting more than a couple of images.

Common mix-ups

• Expecting the JPG to be smaller than the AVIF. AVIF is a newer, more efficient codec, so the opposite is normal.
• Converting to JPG and then wondering where the transparency went - use PNG or WebP instead.
• Using an old browser and assuming the tool is broken; AVIF decoding needs Chrome 85+, Firefox 93+ or Safari 16.4+.
• Re-converting an already-converted JPG expecting quality to improve - each lossy pass only loses more.
• Renaming a file to .avif and expecting it to convert; the contents have to actually be AVIF.

Private by default

AVIF to JPG runs in your browser. The file or text you paste stays on your device. There is no account, and nothing is stored on a ToolBox server for this job.

Related tools worth opening next

If this is one step in a longer job, these usually come after it:

• Format Converter - Convert images between formats in your browser - quality and upscale options included
• WebP to JPG - Convert WebP images back to JPG format
• HEIC to JPG - Convert iPhone HEIC photos to JPG format

Open the AVIF to JPG when you are ready. It is free, and you do not need an account.