To convert ERF to AVIF, select or drop your .erf picture above, check that AVIF is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.
What is an ERF file?
ERF – Epson RAW photo. ERF is a RAW photo format from Epson: the data straight from the camera's sensor, before it is turned into a JPG. It keeps more detail to adjust, but needs a RAW converter to be opened.
ERF Converter →What is an AVIF file?
AVIF – AVIF image. AVIF is a newer picture format based on the AV1 video codec. It gives smaller files than JPG or WebP at the same quality and supports transparency, but it is slower to create and older software cannot open it.
AVIF Converter →How to convert ERF to AVIF
- Click Select File, or drop your .erf files anywhere on this page. You can add several at once.
- Check that AVIF is chosen as the output format. On this page it is picked for you.
- Click Convert. When a file has to go to our server, the button says Upload and convert instead.
- Click Download next to each file when it's done.
ERF vs AVIF: how they compare
| ERF | AVIF | |
|---|---|---|
| Compression | None, lossless or lossy, by camera | Lossy or lossless (AV1) |
| Transparency | No | Yes |
| Animation | No | Yes |
| Created by | Epson | Alliance for Open Media, 2019 |
| Best for | Editing photos with the most room to adjust | The smallest photos on modern websites |
Good to know
- Choose a quality in Options: lower numbers make a smaller AVIF with less detail.
- ERF files are developed on our server with the camera's own white balance, then saved as AVIF. Expect a good-looking picture, not a replacement for your RAW editor.
- Tick Remove metadata in Options to leave out information stored in the picture, such as the camera and the place.
Frequently asked questions
Is converting ERF to AVIF free?
Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.
Are my ERF pictures uploaded anywhere?
This conversion runs on our server, because a browser can't develop camera RAW files. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion.
How large can the ERF file be?
Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.
Can I change the size or quality of the AVIF?
Yes. Click Options next to the file to set a width and height, choose a quality, remove metadata and more. Only the settings that make sense for ERF to AVIF are shown.
Can I convert several ERF files at once?
Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.
Just want to look at it?
Convert ERF to other formats
- ERF Converter
- ERF to BMP Converter
- ERF to EPS Converter
- ERF to GIF Converter
- ERF to ICO Converter
- ERF to JPG Converter
- ERF to PDF Converter
- ERF to PNG Converter
- ERF to PS Converter
- ERF to PSD Converter
- ERF to TIFF Converter
- ERF to WEBP Converter
Convert other pictures to AVIF
- Convert to AVIF
- HEIC to AVIF Converter
- PNG to AVIF Converter
- JPG to AVIF Converter
- WEBP to AVIF Converter
- TIFF to AVIF Converter
- PSD to AVIF Converter
- GIF to AVIF Converter
- BMP to AVIF Converter
- CR2 to AVIF Converter
- NEF to AVIF Converter
All image formats
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