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BMP

Uncompressed BMP · up to 5 files
10 MiB each · 25 MiB combined
20 MP each · 40 MP combined
8192 pixels per side

Supported variants

Static images only. Renaming an extension does not change its format.

BMP: standard 40-byte DIB header, uncompressed 24-bit RGB, no palettes or profiles. Top-down and bottom-up row order supported.

    Convert BMP to WebP

    A clear view of every change

    Add an image to inspect your original, adjust settings and create a real download.

    Output settings WebP output

    Choose supported images to begin. No files are uploaded.

    Output 0

    About this tool

    Convert supported uncompressed BMP images into actual WebP downloads.

    Supported input
    BMP
    Output format
    WebP
    Batch size
    Up to 5 files; format and combined limits below still apply.

    How it works

    1. Add Uncompressed BMP files in Input. Review each thumbnail and its validation status.
    2. Check the input preview, choose output settings and create the result.
    3. Create the selected files. Compare original and result, then download an individual file or ZIP. Changing settings marks older results out of date.

    Supported files and limits

    Up to 5 files, 10 MiB each and 25 MiB combined. Each image must fit within 8192 pixels per side and 20 million pixels; a batch is limited to 40 million input pixels. Output is limited to 20 MiB per file and 50 MiB combined. One isolated image job runs at a time, with a 30-second timeout and cancellation.

    A practical example

    Export a supported BMP graphic as static WebP for a compatible destination. Compare the measured size and examine straight lines at full resolution.

    Troubleshooting this tool

    This does not animate the picture or reconstruct transparency. Lower quality may soften text; the smallest file is not always the most useful result.

    BMP input requires uncompressed 24-bit RGB with a standard 40-byte DIB header, no palette/profile and exact padded row bytes. Both top-down and bottom-up rows are supported. Other BMP variants are rejected.

    Check the actual export

    Only the input variants listed below are supported. Pixel dimensions are preserved; source resolution and descriptive metadata are not retained. Inspect downloaded dimensions, transparency and fine edges before replacing an original. Browser encoders differ; a quality setting is not a universal fidelity score, and file size may increase.

    Files stay in your browser

    No file bytes are uploaded. Ordinary work stays in memory. Choosing a “Continue” action saves that result in this browser for up to 30 minutes, so another compatible working tool can use the actual output. Saved workflows are limited to 50 MiB and 20 files; clear them in Output. Expired entries are removed on later tool visits. Clearing references is not a secure-erasure promise.

    If a file fails

    Check its actual format and the restrictions above. Renaming a file does not convert it. A failed file does not erase successful batch results. If processing times out, cancel and try fewer or smaller files. A current browser with worker canvas support is required.

    Before you use the download

    • Compare the actual output byte size with the source; a new encoding can be larger.
    • Inspect fine edges, gradients and any transparency background in the downloaded WebP file.

    Tools that accept this output

    These links use this tool's default output format, subject to each next tool's supported variants and limits. If you change the export format, use Continue in Output to see compatible actions for the actual result. Opening a link below starts another tool without transferring a file.

    Need help with this operation? Contact Pro Edit Tools Support with a non-sensitive description of the problem.