How to convert HEIC to BMP
- Click Choose files or drop your HEIC images into the box above — up to 10 at a time on the free plan.
- Optionally resize if you like and pick the background color for transparent areas.
- Conversion starts right away. Download each BMP file, or click Download all to get them as one ZIP.
HEIC vs BMP
| HEIC | BMP | |
|---|---|---|
| Compression | Lossy | Uncompressed |
| Transparency | Yes | No |
| Animation | No | No |
| Colors | 8–10 bits per channel | Usually 24-bit color, stored uncompressed |
| File size (photos) | Very small (about half of JPG) | Very large |
| Opens on | iPhone, iPad and Mac out of the box; Windows needs extra Microsoft Store extensions; most websites and Android apps do not accept it | Windows and most image viewers; rarely accepted on the web |
| Best for | Storing photos on Apple devices without filling up the storage | Old Windows software, embedded devices and tools that need raw pixels |
About HEIC and BMP
What is HEIC?
HEIC is the format iPhones and iPads use for photos by default. It compresses images with HEVC (H.265) video technology, so photos take about half the space of a JPG at the same quality. The catch: Windows PCs, many websites, online forms and Android apps cannot open HEIC files, which is why people convert them to JPG.
- About half the size of JPG
- Keeps 10-bit color and depth/Live Photo data
- Default on every recent iPhone
- Not supported on most Windows PCs without paid extensions
- Rejected by many websites and upload forms
- Only Safari can display it in a browser
What is BMP?
BMP is an old Windows format that usually stores every pixel uncompressed. A photo saved as BMP can be 10–20 times larger than the same JPG. Today it is mostly needed for legacy software, some printers, industrial machines and microcontroller displays.
- Simple, uncompressed and lossless
- Readable by old and embedded software
- Enormous files
- No useful transparency or metadata
- Not accepted by most websites
Why GlideConvert?
- Private by design. Your files are converted on your own device by your browser — they are never uploaded to a server. That keeps them private, avoids upload waits and means there is no queue.
- Fast. Images convert in a fraction of a second; video uses your device’s hardware encoder.
- Free. No sign-up, no watermark. 10 images, 5 audio files or one video at a time — Pro lifts the limits and removes ads.
Frequently asked questions
Will converting HEIC to BMP reduce quality?
No. BMP is lossless, so the result looks exactly like your HEIC. Converting cannot bring back detail the HEIC compression already removed, though, and the BMP file will usually be bigger.
Will the BMP file be smaller than the HEIC?
Usually not. BMP files keep every pixel, so they are typically larger than HEIC. If you need a small file, try WebP or compress the image.
Why are my iPhone photos saved as HEIC?
Since iOS 11 (2017), iPhones and iPads save photos as HEIC because it needs about half the storage of JPG at the same quality. The downside is compatibility: Windows PCs, Android phones and many websites cannot open HEIC files.
How do I make my iPhone take JPG photos instead?
Open Settings → Camera → Formats and choose Most Compatible. New photos will be saved as JPG (and videos as H.264). Photos you already took stay HEIC — convert them here.
Which kind of BMP is created?
A standard 24-bit uncompressed Windows bitmap that every program able to read BMP can open.
Can I convert several HEIC images at once?
Yes. The free plan handles 10 images at a time, and you can download everything as a single ZIP. Pro removes the batch limit, converts files in parallel and supports files up to 4 GB.
Are my files uploaded to a server?
No. GlideConvert runs entirely in your browser: images are processed with the browser’s built-in codecs and WebAssembly, video and audio with hardware-accelerated WebCodecs (or a WebAssembly build of FFmpeg for older formats). Nothing is sent anywhere — you can even disconnect from the internet once the page has loaded.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any up-to-date browser — Chrome, Edge, Safari, Firefox or Samsung Internet — on phones, tablets and computers, with nothing to install. On phones, extremely large images may be scaled down to fit within the browser’s memory limit; you will see a note if that happens.