# Compress HEIC to 1 MB > Compress HEIC to under 1 MB for email attachments, insurance claims, school forms and marketplaces. Usually keeps full detail. Free, private, in-browser. URL: https://ihateheic.com/compress-heic-to-1mb Updated: 2026-10-04 One megabyte is the most common upload limit on the internet. Drop in your iPhone photos and get JPGs that fit, usually with almost no visible loss. This tool runs entirely in the browser: photos are decoded and encoded on the visitor’s device and are never uploaded. It is free, needs no sign-up and works offline after the first visit. ## How to use it 1. Drop your HEIC photos above, from the Photos app, Files or a folder. 2. Each photo is compressed to the best quality that fits under **1 MB**. 3. Download them one by one or as a ZIP, then attach or upload. ## The internet's favourite limit If an upload form has a size limit, there's a good chance it's 1 MB. It shows up on form builders and support systems everywhere, and it trips up iPhone users constantly because a single HEIC photo is often 2 to 4 MB and won't be accepted as HEIC anyway. Places you'll hit it: - **Email**, when you want to send a batch without bouncing off the attachment limit - **Insurance and claims portals**, for photos of damage, receipts and serial numbers - **School and college forms**, from admissions documents to coursework uploads - **Marketplaces**, where sellers upload several photos per item ## How the 1 MB target works We start at quality 88 and search for the highest quality that comes in under 1,000,000 bytes. For most 12 MP photos that's achievable at full resolution or very close to it. Only if a photo is extremely detailed, like a field of grass or a crowd, do we scale it down slightly. The search never drops below about 55, so you won't get a smeary result just to save a few kilobytes. ## Photographing an insurance claim Claim photos need to be readable more than pretty. A few tips that help adjusters: - **Shoot close, then wide.** One photo of the damage up close, one showing where it is. - **Keep the date.** Date and time are kept by default, which can help show when a photo was taken. Location is removed by default; switch Metadata to "keep everything" if your insurer asks for it. - **Check orientation.** Sideways photos are annoying to review. Fix them with [Rotate HEIC](https://ihateheic.com/rotate-heic) before compressing. - **Name files sensibly** after download, like "kitchen-ceiling-1.jpg". ## Emailing photos without the bounce A batch of 1 MB JPGs is the friendliest way to send photos by email: every recipient can open them and they won't clog an inbox. Our guide on [sending HEIC photos by email](https://ihateheic.com/how-to-send-heic-photos-by-email) covers the details, or use [Convert HEIC for email](https://ihateheic.com/convert-heic-for-email) for a one-click preset. ## Need a different number? Got a 2 MB limit? Use [compress HEIC to 2 MB](https://ihateheic.com/compress-heic-to-2mb) and keep more detail. Need it tighter? The 500 KB page has you covered. ## Your photos stay put Claims and school forms often involve personal documents. Here, nothing is sent anywhere until you upload the finished file yourself. All the compressing happens in your browser, even with Wi-Fi switched off after the page loads. ## FAQ ### How do I make an iPhone photo smaller than 1 MB? Drop the HEIC here. We convert it to JPG and search for the highest quality that fits under 1 MB, only reducing the pixel size if quality alone isn't enough. ### Will a 1 MB photo look worse? Usually not in any way you'd notice on screen. 1 MB gives a 12 MP photo plenty of room, and dimensions often stay at or near full size. ### Why do insurance and claims portals reject my iPhone photos? Two common reasons are HEIC format and file size. Many portals only accept JPG and cap each file around 1 MB, so this tool fixes both at once. ### Is 1 MB here the same as 1 MB on the form? We treat 1 MB as 1,000,000 bytes, which is slightly smaller than 1,048,576 bytes. So the file passes whichever definition the form uses. ### How many photos can I attach to an email after compressing? Email services limit the total size of a message, and the exact cap varies by provider. At 1 MB each you can usually attach a good handful of photos to one email. ### Can I do this on my phone? Yes. It works in Safari and Chrome on iPhone and Android. On iPhone, tap Save to put the compressed JPGs back in Photos.