AV1 to BMP Converter

Convert AV1 to BMP Online

A raw .av1 file is an AV1 video bitstream (the royalty-free codec from the Alliance for Open Media), not a still image — so "AV1 to BMP" is really a frame grab. This tool decodes one frame from the video at the moment you choose and saves it as a single Windows Bitmap (BMP): an uncompressed, pixel-exact raster with no quality loss at the export stage. Use it when you need a lossless still for legacy Windows imaging, machine-vision pipelines, or frame inspection where re-encoding artifacts are unacceptable.

How to Convert AV1 to BMP

1. Upload Your AV1 File: Drag and drop your .av1 file or click "+ Add Files" to select it from your computer.
2. Pick the Frame: Under Frame Selection, choose "Specific Frame" and enter a value in "Time (seconds)" to grab one still, or choose "Multiple Screenshots" to export frames at a fixed interval.
3. Set Quality and Resolution (Optional): Use "Quality preset" and "Image resolution" (Resolution Percentage, Preset Resolutions, or a custom Width x Height) to control the output dimensions.
4. Convert and Download: Click "Convert" and download your BMP. No sign-up, no watermark. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours.

BMP vs PNG vs JPG for a Saved Frame

A 24-bit 1920x1080 BMP stores roughly width x height x 3 bytes — about 6 MB per frame regardless of content, because it never compresses. If you want a lossless still that is far smaller, convert AV1 to PNG instead. For an everyday small image to share, convert AV1 to JPG. Keep in mind the AV1 source is already lossy, so any extracted frame carries the video's pre-existing compression artifacts no matter which still format you pick.

Frequently Asked Questions

Why is my BMP file so large?

BMP stores every pixel uncompressed, so file size depends only on dimensions and bit depth, not image complexity. A 24-bit 1080p frame is about 6 MB whether it is a solid color or a detailed scene. If size matters, export to PNG (lossless but compressed) or JPG (lossy, smallest) instead.

Does converting AV1 to BMP lose quality?

The BMP export itself is lossless — it captures the decoded frame pixel for pixel. However, AV1 is a lossy video codec, so the frame already contains the compression artifacts baked in during encoding. BMP preserves those exactly; it cannot recover detail the AV1 encoder discarded.

How do I grab a frame at a specific time?

Choose "Specific Frame" under Frame Selection and type the timestamp into "Time (seconds)" — decimal values such as 5.25 are accepted. To capture a whole sequence, switch to "Multiple Screenshots" and set the interval, and the tool exports one BMP per step.

Should I use BMP, PNG, or JPG for a screenshot?

For most uses PNG is the better lossless choice: same pixel-exact quality as BMP but a much smaller file, plus transparency and web support. Pick BMP specifically when a target system requires raw, uncompressed bitmaps (older Windows GDI software, some machine-vision and embedded tools). Use JPG only when small size matters more than perfect fidelity.

What does a .av1 file actually contain?

A .av1 file is an AV1 elementary video stream — the raw coded bitstream from the Alliance for Open Media's royalty-free codec, finalized in 2018. It holds video frames only, with no audio or container metadata, which is why this conversion treats it as a sequence of frames to grab from rather than a still image.

Is the conversion private?

Yes. Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public. In our testing, a single 1080p frame from an AV1 clip exported to a roughly 6 MB 24-bit BMP, consistent with uncompressed bitmap sizing.