EXIF Metadata Editor for Images and Videos

Every JPEG carries an EXIF (Exchangeable Image File Format) block alongside its pixels, holding the camera, exposure, date, and — if location was on — GPS coordinates. This tool opens that block, lets you change the values that are safe to write, and saves a new file, all without sending your photo anywhere.

1. Reading. Your JPEG is read in the browser with piexifjs, an open-source library that parses the TIFF/IFD0, Exif sub-IFD, and GPS IFD. The existing values are pre-filled into the form so you edit, not retype.
2. Writing text tags. Title, author, copyright, software, and the camera make and model are stored as Exif ASCII tags (for example Artist is tag 0x013B). The editor writes exactly the tag each field maps to, and clearing a field deletes that tag rather than writing an empty one.
3. Dates. The capture date is written to DateTimeOriginal in the Exif format YYYY:MM:DD HH:MM:SS. The tool converts from the browser's date picker and validates the result before saving.
4. GPS. Coordinates you enter as decimal degrees are converted to the Exif layout of three rationals — degrees, minutes, and seconds — using D = floor(x), M = floor((x−D)×60), S = ((x−D)×60−M)×60, with the hemisphere stored as a separate N/S/E/W reference. The result is verified by converting it back with the inverse formula x = D + M/60 + S/3600 and confirming the two agree.
5. Saving. The rewritten metadata is inserted back into the original JPEG. Only the metadata segment changes, so the image data is byte-for-byte identical — the edit is lossless. The clean-strip option instead removes the entire metadata segment.

EXIF is specific to JPEG and TIFF, so PNG, WebP, HEIC, AVIF, and video files can't have individual tags edited here. For those, the tool still offers a privacy strip: raster images are re-encoded through a canvas, which carries the pixels only and drops every embedded tag.

• CIPA DC-008 / JEITA CP-3451 — Exif 3.0 specification (tag ids, ASCII/RATIONAL types, GPS IFD, datetime format)
• ISO 6709:2008 — standard representation of geographic point location
• piexifjs — the open-source JPEG EXIF read/write library used by this editor

The tag mapping and GPS conversion formulas on this page were last reviewed on 2026-06-02. The GPS conversion is cross-checked against a second formula inside the tool.