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Gel
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For everyone who pastes work into AI

Use AI without leakingpersonal data.

You paste a record into an AI chat to get help, and the ID numbers go with it. Gel warns you before personal data reaches the chat and offers a redacted copy to paste. For files, it saves a copy with the personal data blacked out. It all runs on your Mac.

Demo build · 14.4 MB · macOS 15+ · Apple silicon

Download for MacInstall guide

Leak Guard, recreated: a synthetic employee record was just copied. The list is Gel's real output for that sample.

Runs on your Mac with

  • Ollama
  • Qwen3 4B
  • BGE-M3
  • Apple Vision
  • NaturalLanguage
  • SQLite FTS5

The research

Most leaks into AI aren't malicious. They're copy and paste.

Cyberhaven Labs tracked billions of data movements into AI tools at 222 companies for its 2026 AI Adoption & Risk Report. People paste records into a chat to get everyday work done, and the personal data goes with them.

“AI-related threats are almost always unintentional.”

  • 39.7%

    of all AI interactions involve sensitive data, counting prompts, copy-paste and file uploads.[1]

  • 3 days

    is how often, on average, an employee puts sensitive data into an AI tool.[2]

  • 32.3%

    of ChatGPT use happens through personal accounts, outside company accounts. For Claude it's 58.2%, for Perplexity 60.9%.[2]

  • 82%

    of the 100 most-used AI apps are rated medium, high or critical risk.[1]

Gel sits at that moment: the paste and the upload. It catches personal data on your clipboard before it reaches an AI chat, and blacks it out of files before you share them.

  1. [1] Cyberhaven Labs, 2026 AI Adoption & Risk Report (Feb 5, 2026)
  2. [2] Cyberhaven, “Sensitive Enterprise Data Is Flowing Into AI Tools at Scale” (Feb 11, 2026)
  3. [3] Cyberhaven, “AI Insider Threats” (updated Mar 18, 2026)

What Gel does.

  • Caught before you paste.

    Copy something with ID numbers or bank details in it and switch to an AI chat in your browser: Gel warns you what it holds and offers a copy with placeholders like [SSS_1] to paste instead.

  • Finds the personal data for you.

    Government IDs (SSS, TIN, PhilHealth, Pag-IBIG, PhilSys), passports and driver's licenses, card, bank and GCash numbers, salaries, phone numbers, addresses and names, in text PDFs, scanned pages and photos. Patterns, Apple's name detection and a local AI model each take a pass.

  • Blacked out for good, before you upload.

    Need to give an AI or a client the file itself? The redacted copy is rebuilt from page images with the boxes flattened in, so the blacked-out text can't be selected, searched or copied back out. Your original stays exactly as it was.

For anyone who asks AI for help with real documents.

When you set Gel up, pick the rules that fit: Work, Personal, or both.

  • Work: HR and admin teams

    The example on this page

    Résumés, 201 files and payslips carry SSS, TIN and PhilHealth numbers and salaries. Black them out before the files go to a client, a vendor or an AI chat.

  • Personal: your own documents

    Passports, driver's licenses, bank statements and GCash details. Keep the numbers out of an AI chat, or black them out before you send a loan, rental or job application.

How it works

Uploading the file itself? Send a redacted copy.

You check every item before anything is saved. The example below redacts résumés from Gel's HR sample files.

Gel's review screen, recreated with a synthetic résumé from the sample files.

  1. 01

    Select the files

    In Gel's Library, select one file or several and click Redact. Gel checks every page on your Mac, scans included.

    Library · HR Files / Resumes

    • Resume_REYES.pdf
    • Santos_Rodel_Resume.pdf
    • CV - Patricia Anne Cruz.pdf
    • CV - Rommel Valdez.pdf
    Redact 3 files

  2. 02

    Review Before and After

    Each page shows side by side: your original with every finding outlined, and exactly what the saved copy will look like. Untick anything you want to keep visible.

    Gel will black out 15 of 16 items in 1 file.

    • 25-6708763-7SSS
    • 0966 174 4548Phonekept
    • ₱45,000.00Salary
    • April 18, 1991Birth date

  3. 03

    Save the redacted copies

    Gel saves a new file for each one in a Redacted folder next to the originals. Originals are never changed, and an earlier copy is never overwritten.

    HR Files / Resumes / Redacted

    • Resume_REYES_REDACTED.pdf
    • Santos_Rodel_Resume_REDACTED.pdf
    • CV - Patricia Anne Cruz_REDACTED.pdf

    Saved 3 redacted files. Originals are unchanged.

Privacy

Your files never leave your Mac.

Your documents carry ID numbers, bank details and home addresses. Gel finds and blacks them out on your Mac, so a file never has to be uploaded to be redacted.

  • Cloud fallback is off by default. If you turn it on, Gel uses your own OpenAI-compatible endpoint for answers only, and redacts the text first.
  • Counts, never content. Leak Guard's log keeps counts and categories, never what you copied.
What runs on your Mac and what needs the internet
TaskOn your MacInternet
Finding personal dataPatterns, Apple NaturalLanguage, local modelNo
Redaction and Leak GuardOn your MacNo
Reading scans (OCR)Apple VisionNo
AnswersQwen3 4B via OllamaOnly if you turn on a cloud fallback, with redacted text
SearchBGE-M3 via Ollama, SQLiteNo
First model download—Once, during setup

Also in Gel

Ask your files, and see the page it came from.

Press ⌥Space and ask in English or Taglish. Gel answers from your documents with numbered sources, using the same local models.

The launcher, recreated with Gel's synthetic sample files.

Install

Four steps to a working install.

The longest step is downloading the two local models. After setup, typed questions, OCR and redaction run on your Mac.
  1. 1

    Download and check it

    Download for MacDemo build · 14.4 MB · macOS 15+ · Apple silicon

    Compare the file's SHA-256 with this one before you open it:

    SHA-256
    23ae6581dc2f4e2b3852b62e04e24a27ceaaad95b1c97b10059e4620a416f72f
    Check in Terminal
    shasum -a 256 ~/Downloads/Gel-macOS-arm64.dmg
  2. 2

    Drag Gel to Applications

    Open the DMG and drag Gel onto Applications. Then drag Gel Sample Files to Documents: the disk image is read-only, and Gel writes redacted copies next to the originals. Eject the Gel disk when you're done.

    The Gel installer window: Gel.app with an arrow to Applications, and below it Gel Sample Files, START-HERE.md and About This Build.
  3. 3

    Open it the first time

    This is an ad-hoc-signed demo build, not a notarized release, so macOS stops it the first time. Open Gel once and dismiss the warning. Then go to System Settings → Privacy & Security, click Open Anyway under Security, and enter your password.

    The button only appears for about an hour after you try to open the app. On macOS 15, Control-clicking and choosing Open no longer skips this step.

  4. 4

    Install Ollama and the models

    Gel runs its models through Ollama. The model weights aren't in the DMG.

    # Needs Homebrew: https://brew.sh
brew install ollama
brew services start ollama

    To try the sample files, open Gel, choose Work: HR, and select Documents/Gel Sample Files/HR Files. When indexing finishes, open the Library, select three résumés and click Redact 3 files.

    To try questions, press ⌥Space and ask “Sino sa applicants ang may 5+ years sa payroll?”

Before you start

Requirements and questions.

Requirements

Mac
Apple silicon (M1 or newer)
macOS
15 Sequoia or later
Memory
16 GB recommended
Disk
About 8 GB free for the models and the index
Also needs
Ollama, installed in step 4

Intel Macs aren't supported.