NOW AVAILABLE · Download on the Mac App Store

Every file testifies.
Control what it says.

MetaWrite is the forensic metadata suite for macOS. Inspect every hidden tag, rewrite timestamps, GPS, and device signatures, or erase them completely — with a hash record of every change, and without your files ever leaving your Mac.

Native macOS · macOS 14 or later · Free download, Pro unlock in-app

GPS43°16'25.5"N — exposed
EDITDateTimeOriginal → rewritten
SHA-256recorded ✓
MetaWrite on macOS in Edit Mode: GPS latitude and longitude fields unlocked for rewriting, with hashes, key forensic indicators, and a location map
Forensic investigators Cybersecurity analysts Investigative journalists Legal teams Law enforcement operations Privacy professionals
Exhibit A

Every share is a statement.
Most of it is involuntary.

Three quiet leaks hiding in an ordinary photo — and the moment you take control.

GPS · EXPOSED

The photo you posted pins your home to within a few meters.

DEVICE · TRACED

Serial numbers tie every shot back to the camera in your hand.

REWRITTEN · CONTROLLED

MetaWrite closes the case: rewrite the record, or erase it — with hashes of the file before and after.

The Suite

One workbench.
Total metadata authority.

Images, videos, PDFs, and Office documents carry hundreds of invisible tags. MetaWrite reads them, and rewrites or removes them in images, video, audio, and PDFs. Office documents and WAV audio are read-only.

Inspect

Deep Forensic Tag Inspection

Dissect the full internal metadata architecture — EXIF, IPTC, XMP, GPS, and manufacturer maker notes — in an interactive, searchable raw-tag viewer.

Rewrite

Granular Tag Editing

Don't just delete — change. Rewrite capture dates, GPS coordinates, camera serials, and creator tools field-by-field. Save tag-sets as reusable templates.

Scale

Batch Processing Powerhouse

Clean a whole folder, subfolders included, in one run: each file is processed in turn and saved as a new copy, and every original is only read.

Record

Hashes & PDF Certificates

Compute MD5, SHA-1, SHA-256, SHA-512, and SHA3-256 hashes and export a PDF certificate of the file, its hashes, and every change. The certificate is a printed record, not a digitally signed document.

Integrate

Native macOS Extensions

Send a file to MetaWrite from Finder's Share menu, or open a photo in MetaWrite's editing extension from inside the Photos app.

Contain

Map Privacy Switch

Geotags plot on a native Apple map, which loads the area around the photo's position from Apple. Turn on Zero Telemetry and MetaWrite shows no map and no Apple Maps link, so the coordinates are not sent. The App Store check still contacts Apple.

The Killer Feature

Other tools delete metadata.
MetaWrite rewrites it.

A stripped file raises questions. A controlled file answers them. MetaWrite is a true metadata editor — every tag is a field you own.

  • Rewrite any tag, field-by-field. Capture dates, GPS coordinates, device signatures, creator tools — double-click and type.
  • Control file dates. Give an exported copy the original's file dates, or a fixed date (4 January 1954) that says nothing about when it was made.
  • Save tag-sets as templates. Build your standard redaction or attribution profile once, apply it to every case file after.
  • Originals stay untouched. Edits export as new copies, each hashed and logged.
MetaWrite — Edit Mode · IMG_8205.png
DateTimeOriginal2026:06:29 20:27:292026:01:15 09:00:00
GPSLatitude43°16'25.51"N— removed —
GPSLongitude11°44'12.13"E— removed —
DeviceApple iPhone 16 Pro Max— removed —
BodySerialNumberF2LW48XKQ1J9— removed —
CreatorToolPhotos 26.5CaseFile Workflow v2
Exported as a new copy · SHA-256 logged · original preserved
Interactive Demo

The Evidence Lab

See what your files are saying behind your back. Open a case sample — or drop one of your own photos. Analysis runs entirely in your browser: nothing is uploaded, ever. Just like the app.

MetaWrite Evidence Lab — browser preview LOCAL-ONLY · NO UPLOAD

Analyze your own file

Drop a photo or click to browse

⏻ 100% local — parsed in your browser, never uploaded

Case samples

—
EXPOSURE

Double-click any tag to edit — in the full app
Zero-Knowledge Architecture

Built for rooms where
the Wi-Fi is turned off.

MetaWrite reads, edits, and hashes your files on your Mac and never uploads them. No accounts. No third-party tracking. No crash reporting. The only connections it starts by itself are to Apple: the App Store check at launch and, while Zero Telemetry is off, the map for a photo's GPS position.

0
files uploaded
0
trackers & analytics SDKs
100%
of the analysis done on your Mac
4+
hash algorithms, computed locally
MetaWrite analysis window with MD5, SHA-1, SHA-256, SHA-512 and SHA-3 hashes and the Export Certificate (PDF) action
HASHES RECORDED
PDF Certificate

A printable record of every change.

Every operation can be documented in a PDF certificate: the source file, the time the PDF was made, every change, and five hashes — MD5, SHA-1, SHA-256, SHA-512, and SHA3-256. The PDF is not digitally signed; its hashes let anyone check a file against it.

  • Printable formatting — clean, readable, and unambiguous.
  • Before/after documentation of exactly which tags changed and when.
  • Batch logs covering entire directories in a single audit trail.
The Right Tool

MetaWrite vs. the alternatives

Honest answer: it depends on your desk. Here is how the three roads compare.

Capability MetaWrite ExifTool (CLI) Online strippers
Interface Native macOS app Command line Browser upload form
Files stay on your machine Always — never uploaded, zero telemetry Yes — runs locally No — files are uploaded to someone else's server
Rewrite individual tags Field-by-field visual editor Flags and syntax Mostly strip-only
Hash records & certificates MD5 → SHA-512 + printable PDF certificate Hashes via separate tooling None
Batch, originals untouched Cleaned copies; originals are only read Scriptable — you write the safeguards Limited, with file-size caps
Built for Investigators, journalists, legal teams Engineers and pipelines Casual one-off use

ExifTool is superb open-source software — plenty of forensic pipelines run on it, and we salute it. MetaWrite is for the desks that need a native interface, a documented record of hashes and changes, and files that never leave the machine.

Pricing

Start free. Go Pro when it matters.

Free download from the Mac App Store. Unlock the full forensic toolkit in-app.

Free
$0

Install it, explore it, learn the craft.

  • Dashboard & file intake — drop zone and file browsing
  • Complete User Guide — EXIF, hashes & forensics
  • All settings — incl. Absolute Zero Telemetry
  • Not included:Metadata analysis & hashes
  • Not included:Tag editing, wiping & batch jobs
  • Not included:Clean exports & certificates
Download on the Mac App Store
MOST POPULAR
Annual Pro
$29.99/year

The full forensic toolkit, always current.

  • Deep tag inspection — EXIF, IPTC, XMP & GPS
  • Rewrite any tag — dates, GPS, devices, serials
  • Cryptographic hashes & geolocation map
  • Clean exports & file-date control
  • Batch processing at scale
  • PDF certificates & templates
  • Share & Photos extensions
Download on the Mac App Store
Lifetime Pro
$99.99 once

Pay once. Own it forever. No subscription.

  • Everything in Annual Pro — forever
  • One-time purchase — no renewals
  • Every update while we support MetaWrite
  • Ideal for agencies & procurement
  • Pays for itself vs. four years of Annual
Download on the Mac App Store
FAQ

Questions from the field

Is MetaWrite available now?
Yes — MetaWrite is live on the Mac App Store. Download it free, explore the dashboard and User Guide, and unlock the full forensic toolkit in-app.
Does MetaWrite ever send my files anywhere?
No. MetaWrite reads, edits, and hashes your files on your Mac and never uploads them. There are no accounts, no analytics, and no crash reporting. It does contact Apple: the App Store check at every launch and, while Zero Telemetry is off (the default), Apple's map loads the area around a photo's GPS position. Turn Zero Telemetry on and MetaWrite shows no map and no Apple Maps link, so the coordinates are not sent; the App Store check continues.
Can it change metadata, or only delete it?
Both — and editing is the point. MetaWrite Pro lets you rewrite individual tags (capture dates, GPS coordinates, device identifiers, creator tools), give an exported copy the original's file dates or a fixed 1954 date, and save tag-sets as templates for repeatable workflows. Wiping everything is just one button among many.
What file types are supported?
Images (JPEG, PNG, TIFF, HEIC, and RAW formats), videos, PDFs, and Office documents. The inspector shows EXIF, IPTC, XMP, GPS, and manufacturer maker-note blocks.
Are edits destructive to my originals?
No. Edited and cleaned files are saved as new copies; your originals — and their hash records — remain intact for your case file. A copy is free of the tags you removed but not traceless: macOS records that MetaWrite saved it, its default name mentions MetaWrite, and MetaWrite's log on your Mac lists it.
What does a certificate contain?
The source file's details, the time the PDF was made, every change, and MD5 / SHA-1 / SHA-256 / SHA-512 / SHA3-256 hashes, in a clean, printable PDF. The PDF is not digitally signed. Whether it is admitted as evidence is for the court to decide, and the rules vary by jurisdiction — consult your counsel.
Mac only?
Yes — MetaWrite is a native app for macOS 14 or later, distributed exclusively through the Mac App Store. Native means fast: batch jobs run in the background using Apple's frameworks.
Does AirDrop or email strip photo metadata?
Generally no. AirDrop and most email attachments transfer the original file — EXIF, GPS, and serial numbers included. (iOS offers a per-share location toggle, but that is one tag on one platform.) The only policy you can actually verify is controlling the file itself before it leaves your machine.
Don't Instagram and Facebook strip metadata anyway?
Social platforms typically strip EXIF from the copies they display — but you handed the complete original to their servers at upload, and what they keep is governed by their policies, not yours. Sanitizing before upload is the only version of "stripped" you can prove.
How is MetaWrite different from ExifTool?
ExifTool is a superb open-source command-line library, and we tip our hat to it. MetaWrite is a different tool for a different desk: a native macOS app with a visual tag editor, live GPS mapping, real-time hash records, and printable PDF certificates — no terminal, no syntax, nothing uploaded. See the comparison.
MetaWrite app icon

Your files are talking.
Decide what they say.

MetaWrite is on the Mac App Store now. Take control of your files today.

Free download · Pro from $29.99/yr or $99.99 lifetime