AVIF to BMP converter: free, fast and secure
This free AVIF to BMP converter turns your AVIF images into BMP files in seconds, right in your browser. AVIF is new, so desktop apps, older phones and many upload forms cannot open it yet. BMP is far more compatible. Some older Windows software, embroidery machines and industrial printers only accept uncompressed BMP files.
Unlike most converters, ConvertKaro never uploads your images. The conversion happens on your own device, so it is quicker, there are no file limits, and your photos stay private.
How to convert AVIF to BMP in 3 steps
- Add your AVIF files. Tap “Select files” or drag and drop one or more .avif images into the box above. You can also paste a screenshot with Ctrl+V.
- Adjust the options. The default settings work for most images, so you can skip this step.
- Download your BMP. Conversion starts instantly. Download each BMP file, or all of them at once as a ZIP.
Why use ConvertKaro AVIF to BMP? Free, fast and secure
There are many AVIF to BMP websites, but most of them upload your files, add watermarks or ask you to pay. Here is why this one is better.
100% Free
AVIF to BMP on ConvertKaro costs nothing. There is no trial, no premium plan and no hidden limit, so you can use it as often as you like.
Fast results
Because nothing travels to a server, results appear almost instantly. Large files are limited only by the speed of your own phone or computer.
Secure and private
Nothing is uploaded. Sensitive files like Aadhaar, PAN, salary slips or contracts stay on your own phone or laptop the whole time.
No signup, no watermark
No account, no email and no watermark on your result. Open the page and start.
Works on every device
Designed for mobile first, so it works just as well on your phone as on a desktop computer.
Quality you control
The BMP output keeps the full resolution of your AVIF, with high-quality resizing and correct colours.
ConvertKaro vs other online converters
| ConvertKaro | Typical online tool | |
|---|---|---|
| Price | Free forever, every feature | Free trial, then paid plans |
| Your files | Stay on your device | Uploaded to a server |
| Signup | Not needed | Often required |
| Watermark or ads on result | Never | Common on free plans |
| Speed | Instant, no upload wait | Depends on upload speed |
| Daily limits | None | Usually limited |
AVIF vs BMP: what is the difference?
Both formats store images, but they are built for different jobs. Here is a quick comparison.
| AVIF | BMP | |
|---|---|---|
| Full name | AV1 Image File Format | Bitmap Image File |
| Type | Raster, lossy or lossless | Raster, uncompressed |
| Compression | Lossy and lossless (AV1) | None |
| Transparency | Yes | No |
| Animation | Yes | No |
| File size | Smallest | Very large |
| Support | Chrome, Edge, Firefox, Safari 16+; few desktop apps | Windows and most editors |
| Best for | High-performance websites, modern apps | Legacy Windows software, some printers and machines |
What is AVIF?
AVIF is the newest mainstream image format, based on the AV1 video codec. It often makes files 30–50% smaller than JPG and noticeably smaller than WEBP at the same visual quality, with support for transparency, HDR and wide colour. Modern browsers display AVIF, but many desktop apps, older phones and upload forms still cannot open it.
What is BMP?
BMP is the classic Windows bitmap format. It stores every pixel without compression, so the quality is perfect but the files are huge: a normal phone photo can become 10–30 MB. Today BMP is mostly used by older Windows programs, embroidery and printing machines, and some industrial software that expects raw pixel data.
When should you convert AVIF to BMP?
- Legacy Windows software
- Embroidery, laser and industrial machines
- Programs that need raw, uncompressed pixels
- Some school and lab software
Tips for the best BMP results
- If your image has a transparent background, pick a background colour that matches where the image will be used.
- You can convert many AVIF files at once. They are processed one after another and can be downloaded together as a ZIP.
- Keep your original AVIF files until you have checked the converted BMP images.
How AVIF to BMP keeps your photos and images private
Most online converters upload your file to their server, process it there and send it back. That costs time, uses your data pack and means a copy of your file sits on someone else’s computer. AVIF to BMP works differently: the page loads the tool into your browser, and your photos and images are processed by your own phone or computer. The file never travels over the internet, so it cannot be leaked, stored or misused.
Using AVIF to BMP on your phone
AVIF to BMP is designed for small screens. Buttons are large, options are simple, and downloads save directly to your phone storage. On iPhone, downloaded files appear in the Files app under Downloads; on Android they go to the Downloads folder.
Who uses AVIF to BMP?
Here are some of the people who find this tool most useful:
- Students uploading photos and signatures to exam and admission forms
- Online sellers preparing product photos for Instagram, Meesho, Amazon and Shopify
- Office staff handling ID cards, scans and screenshots
- Bloggers and web designers who need fast-loading images
- Anyone sharing pictures on WhatsApp, email or social media
Supported input: JPG, JPEG, PNG, WEBP, HEIC/HEIF (iPhone), AVIF, GIF, BMP, TIFF and SVG.
Frequently asked questions
Will converting AVIF to BMP reduce quality?
BMP stores the image none, so no extra quality is lost during conversion.
Does BMP keep transparency from AVIF?
BMP does not support transparency, so transparent areas are filled with a background colour. White is the default, and you can pick any colour before converting.
Can I convert multiple AVIF files to BMP at once?
Yes. Select or drop as many AVIF images as you like. Each one is converted separately, and you can download them all together as a ZIP file.
Is AVIF to BMP really free?
Yes. AVIF to BMP on ConvertKaro is 100% free with no limits, no signup and no watermark. There is no paid version.
Is it safe to use AVIF to BMP online?
It is one of the safest ways to do it, because nothing is uploaded. All processing happens locally on your device, and the files disappear when you close the page.
Does AVIF to BMP work on mobile?
Yes. It works in Chrome and Safari on Android phones and iPhones, as well as on tablets and computers. No app is needed.
Is there a file size limit in AVIF to BMP?
No upload means no server limit. The only limit is your device’s memory, which comfortably handles everyday files and even large batches.
Will ConvertKaro add a watermark or ask me to sign up?
No. There is no watermark, no login and no email required. Your downloaded file is exactly your result.
Does AVIF to BMP work offline?
Once this page has finished loading, the tool keeps working even if your internet connection drops, because all processing happens on your device.