Free online HEIF→FITS converter. Fast, private, no sign-up.
If something is asking you for a FITS file and all you have is a HEIF, this page is the fix. Drop in your HEIF file (a .heif) and download a ready-to-use FITS file (a .fits) — no software to install, no account to create, and no watermark on the output.
HEIF is an image format. Converting to or from it lets you use the same picture in apps and on platforms that expect a different format.
FITS is an image format. Converting to or from it lets you use the same picture in apps and on platforms that expect a different format.
You'll reach for a HEIF to FITS conversion whenever the other end expects FITS specifically — uploading somewhere, importing into software, or sharing with someone whose device prefers it. Under the hood the conversion runs on libvips and ImageMagick — the same libraries that power image pipelines across the web — so colour, transparency and metadata are handled correctly wherever the target format supports them.
FITS has no alpha channel, so any transparent areas in your HEIF are flattened onto a solid background during conversion.
It comes up when publishing online, submitting to a service with strict format rules, or archiving a collection in a single consistent format.
Privacy is the default here. Your HEIF file is uploaded over an encrypted connection, converted, downloaded the moment it's ready, and then deleted automatically a short time afterwards. We never keep your files, never build a library of your content, and never make you sign up to download the result.
Ready? Use the converter above, or explore related conversions: turn HEIF into a different format, or convert another format into FITS. Everything on Convert Me Pls is free, unlimited and watermark-free.
Yes. Convert Me Pls is completely free with no sign-up, no file-count limits and no watermarks added to your output.
Your files are uploaded over an encrypted connection, converted, and then deleted automatically a short time afterwards. We never keep your files and never build a library of your content.
We use the best available encoders (libvips, ImageMagick and ffmpeg) at high-quality settings for the cleanest possible result.
Conversions run on our servers and support large files comfortably; very large media is processed in a streaming pipeline.