Convert BMP images to HEIC online for free. Use this exact converter when you need better compatibility, different transparency behavior, or a format that fits your next workflow better.
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Checking files and selected output formats.
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HEIC uses HEVC/H.265 encoding — about 2× more space-efficient than JPG at equivalent quality. It's the default iPhone camera format since iOS 11. Support is narrower than JPG: iOS, macOS Big Sur+, Windows 11 (with a codec install), Android 10+ (with limitations). Convert to HEIC when destination is Apple-ecosystem storage / iCloud, or for archival compression of a large JPG library.
Every image conversion involves a small trade-off between quality, file size, and compatibility. Here's how to make the choice deliberately, not by accident.
The drop zone above accepts single images or batches. Free-tier uploads are limited to 10 MB per file — enough for phone photos and standard web images. Pro handles files up to 1 GB and batches of up to 20 at once. Filenames are preserved, and the new extension is appended automatically.
HEIC conversions default to a sensible middle ground — high enough that nothing visible is thrown away, low enough that the file isn't oversized. If you're preparing for print, pick a higher quality; for a web thumbnail, drop it. If the target format is lossless (PNG, TIFF, or WebP-lossless), there's no quality slider — every pixel is preserved.
The output is ready in a couple of seconds for a single image, or a few seconds for a batch delivered as a ZIP. Both the source you uploaded and the HEIC output are permanently deleted from our servers within 30 minutes — nothing is retained, backed up, or shared with anyone.
The pixel data in your source is decoded, held briefly in memory as a raw bitmap, and re-encoded into the target format's container. Along the way, we preserve the colour profile embedded in the source (BMP usually carries sRGB; some phone cameras save wider gamuts), any alpha channel where both formats support it, and EXIF metadata where relevant.
If the target format lacks something the source has — say, transparency in a PNG being converted to JPG — that data flattens onto a background before encoding. You'll never lose visible pixels silently; where a trade-off happens, we default to the most common expectation for that specific format pair.
Real reasons people run this conversion — grounded in specific problems, not vague benefits.
WordPress rejects some source formats out of the box. Squarespace, Ghost, and most e-commerce platforms have their own preferred image formats. If the upload button greys out or throws an error, a quick conversion to HEIC usually fixes it — no plugin needed.
Some image formats are ecosystem-specific — HEIC belongs to Apple, WebP has patchy support on legacy Windows apps, and some tools still balk at anything newer than JPG. Converting to HEIC means the person receiving the file doesn't have to install anything to open it.
Passport portals, visa applications, university forms, and job platforms often specify an exact format and file-size ceiling. If the requirement is HEIC, this is the conversion. If they specify size too, run the compression tool afterwards to hit the target byte count.
Figma prefers PNG or SVG for exported assets. InDesign expects TIFF, EPS, or high-quality JPG for print. Canva takes almost anything but produces cleaner results with lossless sources. Converting your image to what the tool actually wants avoids the "why does this look pixelated" back-and-forth.
A 24-megapixel PNG is 20+ MB. Converting to a well-compressed HEIC typically brings that under 3 MB with no visible change on a normal screen. Perfect for sliding under Gmail's 25 MB attachment cap, WhatsApp's compression, or a form's "under 5 MB" rule.
For long-term storage, a stable, widely-supported format matters more than pixel-perfect quality. HEIC is a reasonable archival choice for BMP sources when the goal is "openable in 10 years on whatever device exists then." Bonus: batch convert the entire folder in one pass.
Every conversion happens on TLS-encrypted uploads, on isolated per-request workers, with both the source and the result auto-deleted within 30 minutes. No ads, no watermarks on paid tiers, no metadata mined for training.
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | BMP | HEIC |
|---|---|---|
| Full name | Bitmap | High Efficiency Image Container |
| Year introduced | 1990 | 2017 |
| Developer / standard body | Microsoft | MPEG / Apple |
| MIME type | image/bmp | image/heic |
| File extension | .bmp | .heic / .heif |
| Compression | Uncompressed (typically) | Lossy (HEVC) |
| Color / data depth | 1 to 32-bit | 8/10-bit |
| Max dimensions / size | 32,767 × 32,767 px | 8,192 × 4,320 px |
| Transparency | Yes | Yes |
| Animation | No | Yes |
| Standard / specification | Microsoft Windows | ISO/IEC 23008-12 |
| Best for | Legacy Windows applications, raw pixel data | iPhone photo storage (50% smaller than JPG at equivalent quality) |
BMP (Bitmap Image File) is a raster image format developed by Microsoft, dating back to 1986. It stores pixel data with little to no compression — each pixel's colour value is written directly into the file, resulting in a faithful but very large representation of the image. While BMP can optionally use RLE (Run-Length Encoding) compression, this is rarely applied in practice, and the format is primarily associated with uncompressed image storage.
BMP is rarely used today for general-purpose imaging due to its extremely large file sizes compared to modern alternatives like PNG or WebP. Its primary remaining use cases are in Windows system resources, legacy desktop applications, and scenarios where raw, uncompressed pixel data is required for processing. BMP offers limited transparency support and no features like animation or metadata. For virtually all modern workflows — web, mobile, print, or archival — other formats provide better compression, features, and compatibility.
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert BMP files to HEIC.
Read image-format guides, transparency tips, compatibility fixes, and file-size advice related to BMP to HEIC Converter.
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