HEVC to BMP Converter

Grab a BMP Frame from HEVC: What This Tutorial Covers

This tool does not convert a whole HEVC clip into a movie — it grabs one frame out of an HEVC (H.265) video and saves that single still as an uncompressed Windows Bitmap (.bmp). This walk-through is for anyone whose downstream tool — a legacy Windows app, an embedded display, a machine-vision pipeline — accepts only raw .bmp and needs a pixel-exact still pulled from video.

How to Convert HEVC to BMP

1. Upload Your HEVC File: Drag and drop or click "Add Files" to load a .hevc (H.265) bitstream — iPhone exports, Android captures, drone footage, and DVR clips all decode. Batch is supported.
2. Pick Frame Selection: Default is Specific Frame with Time (seconds) set to 0, which grabs the very first frame. Type a timestamp like 2.100 (2 seconds, 100 ms) to grab a later frame, or switch to Multiple Screenshots to pull a series at a fixed interval.
3. Set Quality Preset and Resolution (Optional): Choose a Quality preset or a Preset Resolution (144p up to 4320p), scale by percentage, or enter custom Width × Height. BMP is uncompressed, so resolution is the main lever on file size — see the walk-through below.
4. Convert and Download: Click Convert. The frame is processed on our servers and downloads as a single .bmp — no sign-up, no watermark.

Walk-through: Picking the Right Frame and Managing BMP File Size

Two things trip people up on this conversion: which frame you get, and how large it lands.

Which frame. With Time (seconds) left at the default 0, you get the first frame of the clip. The input accepts decimal seconds, so 12.500 lands at 12.5 seconds. The frame returned is the nearest decoded frame to that timestamp — on a 30 fps source that snap-to grid is roughly 33 ms, on 60 fps about 16 ms. All motion in the clip is discarded; you keep exactly one still.

How large. BMP stores every pixel with no compression, so the file size is essentially width × height × bytes-per-pixel plus a small header. That makes a single grabbed frame far bigger than the same frame saved as PNG or JPG:

• A 1920×1080 frame at 24-bit color = 1920 × 1080 × 3 ≈ 6.2 MB as BMP.
• The same frame is roughly 1.5–3 MB as lossless PNG, or 200–500 KB as lossy JPG.
• Halving each dimension quarters the BMP: a 960×540 frame is ~1.5 MB. If you only need it for a 320×240 embedded display, drop the resolution at extraction time.

If you do not specifically need an uncompressed bitmap, a smaller lossless still is at HEVC to PNG and a small lossy still is at HEVC to JPG.

Common Errors and How to Fix Them

• "The first frame is black or pixelated" — HEVC uses long groups of pictures (one IDR keyframe followed by many predicted frames). A clip that does not start cleanly on a keyframe can decode dark at 0. Move Time (seconds) forward by 0.1–0.5 s.
• "My BMP is huge / won't attach to email" — That is expected: BMP is uncompressed (~6.2 MB per 1080p frame). Drop the resolution preset, or extract as JPG/PNG instead if uncompressed isn't a hard requirement.
• "I wanted the whole video, not one image" — This is a frame grab by design. To keep motion, convert with HEVC to MP4 instead.
• "My file is a .mov from an iPhone, not .hevc" — That is an HEVC track inside a QuickTime container. Use a MOV frame-grab tool for those, or remux first.
• "I got many BMPs, not one" — You're in Multiple Screenshots mode. Switch back to Specific Frame for a single still.

When This Doesn't Work

DRM-protected or partially corrupted bitstreams may fail to decode the requested frame. Variable-frame-rate phone footage can make a timestamp land a frame or two off from what you expect — switch to Multiple Screenshots with a small interval and pick the exact frame from the set. And if you need a 10-minute clip turned into thousands of bitmaps, remember each 1080p BMP is ~6.2 MB; that is tens of gigabytes uncompressed, so a smaller still format is almost always the better choice at volume. For the reverse direction, see BMP to HEVC.

Frequently Asked Questions

Which frame do I get if I leave the time at zero?

The very first frame of the clip. Specific Frame mode defaults Time (seconds) to 0. Type any decimal timestamp (e.g. 2.100 for 2.1 seconds) to grab a different frame, or switch to Multiple Screenshots to capture a sequence at a fixed interval instead of a single still.

Why is the BMP so much larger than the HEVC video?

Because BMP is uncompressed. HEVC (H.265) is a highly efficient video codec that uses inter-frame prediction and discards perceptually redundant data, so a whole clip can be smaller than one of its raw frames. A 1080p frame stored as 24-bit BMP is 1920 × 1080 × 3 ≈ 6.2 MB, where the same frame is ~1.5–3 MB as PNG or ~200–500 KB as JPG. The bitmap stores every pixel independently with zero compression.

Does this convert the whole video?

No. It extracts a single still image — one frame — and saves it as one BMP. All motion is discarded. If you want to keep the video as video, use HEVC to MP4; for an animated result, a GIF tool is the right path.

What bit depth and pixel format is the BMP?

24-bit RGB (BI_RGB, uncompressed) — the most widely compatible BMP variant, readable by every Windows version, standard image viewers, and libraries like OpenCV and Pillow. BMP itself supports 1, 4, 8, 16, 24, and 32 bpp, and stores pixels bottom-up in BGR order per the format spec, but every modern reader handles that transparently. For an 8-bit indexed (256-color) BMP, do a second pass in ImageMagick or Photoshop.

How long do you keep my uploaded file?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no watermark, no sign-up, never shared or made public. In our testing, a single-frame BMP grab from a 1080p HEVC clip completes in a couple of seconds; the practical limit on a big source is upload speed, not the frame extraction itself.