Strip metadata from a whole folder at once
When you publish or hand over many images — case evidence, field photos, press assets — each one can quietly carry GPS coordinates, device serial numbers, timestamps, and editing history. Cleaning them individually is tedious and easy to get wrong. This redactor takes the entire batch in one drop and returns a ZIP of metadata-free copies.
How it works
Image metadata lives in marker blocks (EXIF, IPTC, XMP) stored separately from the compressed pixels. The redactor removes them by re-encoding rather than by editing the markers directly:
- Each image is decoded into a bitmap and drawn onto a
<canvas>. - The canvas is exported back to a JPEG, PNG, or WebP. Because a canvas export emits only the raw pixels, every metadata block is dropped.
- Cleaned files are collected and, on request, bundled into a single ZIP with JSZip.
Images are processed one after another so peak memory stays low even with a hundred files in the queue.
Tips and notes
- GPS is the highest-risk field. Phone photos frequently embed exact latitude and longitude — bulk redaction removes it from every file consistently.
- Pick PNG for lossless output, or keep source formats with a PNG fallback for exotic inputs.
- Names are de-duplicated in the ZIP, so two files with the same base name will not overwrite each other.
- Everything runs locally, making this appropriate for confidential or legally sensitive image sets.