Edit metadata
Change individual fields, delete the ones you do not want, or fill a whole set at once from a device profile. Every change is written to the real metadata structures, then read back so you can confirm what landed.
Drag & drop your file here
or paste from the clipboard
Reads metadata in: JPEG · PNG · WebP · HEIC/HEIF · AVIF · MP4 · QuickTime MOV · WebM · PDF · MP3 · WAV · M4A
Your file never leaves your device. Processing happens entirely in your browser.
The field table
The table lists the fields this tool can actually write for your file, pre-filled with whatever the file already contains. Edit a value in place, or use the delete control to drop a field entirely. Anything you change is marked so you can see your edits before applying them.
Only fields with a real encoder behind them are offered. If a field is not in the list, this build cannot write it to that format — the interface will not show you a control that quietly does nothing.
Device profiles
A profile fills in a coherent set of values for a given camera or phone: the maker and model strings that device actually writes, a matching lens, a plausible focal length and aperture for the lens you pick, and a shutter speed consistent with the ISO you choose.
Location is always opt-in. A profile never adds coordinates by itself — you have to type them. Everything a profile fills in is editable before you apply it.
Common reasons to edit
Correcting a timestamp after shooting with a camera whose clock was wrong or still on the previous time zone. Setting consistent authorship and copyright across a set of your own photographs. Removing a serial number while keeping the exposure data that makes a photo useful to study.
Replacing a whole metadata block is also useful when you want a file to carry exactly the fields you specify and nothing else — the "replace all existing metadata" option drops everything first.
What this is not
Metadata is editable by design, and it always has been. That means it is evidence of nothing on its own: any field in any file can be changed by anyone with a text editor and patience.
This tool will not help you forge certifications, produce false evidence, or defeat a provenance system. It writes ordinary metadata fields, and the disclaimer shown next to the profile picker says exactly what those fields are worth.
Frequently asked questions
Which fields can I actually edit?
For JPEG, PNG, WebP, HEIC and AVIF: camera make and model, lens make and model, serial numbers, ISO, exposure time, aperture, focal length, exposure compensation and program, metering, white balance, flash, colour space, orientation, all three dates, software, artist, copyright, description, and GPS coordinates with altitude. For MP4 and MOV: make, model, software, artist, copyright, description, title, creation date and location. For MP3 and WAV: title, artist, album, album artist, composer, genre, year, track, comment, copyright and the writing software — plus the engineer on a WAV, which has a field for it. An M4A takes both sets, because it is an MP4 carrying iTunes tags. For PDF: title, author, subject, keywords, creator, producer and both dates. The formats page lists the exact set per format, counted from the writers themselves.
Can I edit WebM metadata?
No. WebM can be analysed and cleaned, but the editor refuses it: adding fields would mean expanding the container and rewriting seek tables this build does not touch.
Does applying a profile change the picture?
No. It writes the EXIF, IPTC and XMP metadata blocks. The compressed image data is untouched, and orientation is never altered by a profile.
What happens to fields I do not touch?
They stay as they were, in their original positions and encodings. Unless you turn on "replace all existing metadata", only the rows you modify are changed.