# Compress HEIC to 100 KB > Compress an HEIC photo to 100 KB or less for upload forms with a 100 KB limit. Processed in an isolated cloud sandbox and deleted automatically. Free, no sign-up, no watermark. URL: https://www.converterrr.com/compress-heic-to-100kb Shrink an HEIC to 100 KB or less for upload forms with a 100 KB limit. API: `POST /api/v1/jobs` with `"operation": "compress", "target_size": "100kb"` (paid plans). ## How to compress an HEIC to 100 KB 1. **Add your HEIC.** Drop one or more HEIC files onto the compressor above, paste them, or click to browse. 2. **100 KB is preset.** The target is already set to 100 KB, and each file is compressed to land at or just under it. You can switch to another size or a percentage to reduce by. 3. **Compress.** Click Compress. The HEIC is processed in an isolated cloud sandbox and deleted afterwards. 4. **Check and download.** Check the new size, then download each file or all of them as a ZIP. ## Good to know - 100 KB is enough for a sharp photo at preview size, which is all most forms display. Full-resolution phone photos are downscaled to fit. - At 100 KB, a detailed HEIC photo comes out around 1,190 × 790 px at good quality; simpler images can stay larger. The result stays HEIC, so make sure the destination accepts it. - 100 KB here means 100,000 bytes, so the result also fits forms that count 1 KB as 1,024 bytes. - HEIC files are compressed in an isolated cloud sandbox created just for your job; the upload and the result are deleted automatically afterwards. ## What fits in 100 KB Roughly how large a detailed HEIC photo can be at 100 KB. Simple images, like documents and graphics, can stay larger. | Image | Roughly fits | Quality | | --- | --- | --- | | Photo (3:2) | ≈ 1,190 × 790 px | Good | | Photo (3:2) | ≈ 1,600 × 1,070 px | Acceptable, some artefacts | | Square photo or avatar | ≈ 970 × 970 px | Good | _Rough guide for detailed photos. Real results depend on detail, noise and colour._ ## What 100 KB is typically for - Many upload forms cap images at 100 KB - Profile photos on portals, directories and job sites - Small inline images and thumbnails on web pages Limits vary by site and change over time; check the exact number where you're uploading. ## How HEIC gets smaller Re-encodes HEIC at a tuned quality. [Compress HEIC by quality level instead](https://www.converterrr.com/compress-heic) ## Neighbouring sizes Got a mix of formats? [Compress any image to 100 KB](https://www.converterrr.com/compress-image-to-100kb). ## HEIC to 100 KB: frequently asked questions ### How do I compress an HEIC to 100 KB? Drop the HEIC onto the compressor above. The 100 KB target is already set, so just click Compress and download the result. ### Will the file be exactly 100 KB? It aims to land at or just under 100 KB. 100 KB here means 100,000 bytes, so it also fits sites that count 1 KB as 1,024 bytes. ### How much quality will I lose at 100 KB? 100 KB is enough for a sharp photo at preview size, which is all most forms display. Full-resolution phone photos are downscaled to fit. At 100 KB, a detailed HEIC photo comes out around 1,190 × 790 px at good quality; simpler images can stay larger. The result stays HEIC, so make sure the destination accepts it. ### My HEIC is already smaller than 100 KB. What now? Then it already fits, and compressing it further would only cost quality. Upload it as it is, or pick a smaller target if you need it smaller still. ### What if my HEIC can't get down to 100 KB? Very large or detailed images are scaled down further to reach 100 KB. If the result is too small, pick a larger target. ### What is 100 KB typically needed for? Common reasons: many upload forms cap images at 100 KB; profile photos on portals, directories and job sites; small inline images and thumbnails on web pages. Limits vary by site, so check the exact number where you're uploading. ### Is my HEIC private? Yes. It's processed in an isolated cloud sandbox for your job only and deleted automatically afterwards.