No server storage
Your uploaded reference image never touches our server, database, backup system, or temporary file store.
Privacy product · Trust & security
The browser is the only server — no upload, ever.
Grid Maker Pro runs the working image and overlay workflow inside your browser. No server upload is needed to add grids, transform overlays, preview the result, or export the finished reference.
File API
Canvas
Download
Server upload path: not used
Proof points · The privacy promise
Four numbers that make the promise concrete.
The privacy model translates to four hard facts about the running tool. Read across.
0required image uploads for the tool workflow.
Noaccount, email, or password needed to use it.
Localimage reading, overlay rendering, and download generation.
Privateenough for commission references and classroom use.
§ I · The privacy model
Note · Structural promiseThe browser-only architecture is what makes the privacy promise verifiable — there is no server-side image endpoint to compromise, by design.
What happens when you load a reference.
The tool uses standard browser APIs rather than a cloud processing queue. That is the core trust decision behind Grid Maker Pro.
01
You choose a file
Your browser reads the file from your device using the File API.
02
The browser draws
JavaScript renders the image and overlay using HTML5 Canvas.
03
You adjust overlays
Position, rotation, scale, color, opacity, and line weight stay in browser memory.
04
You export locally
The final image is generated by the browser and saved back to your device.
§ II · Six commitments
Clear boundaries, not vague promises.
No artwork analytics
Website analytics and session replay measure visits and clicks. The image editing and print surfaces are excluded from replay, and image content is not sent to analytics providers. The privacy policy has the details.
No account gate
No signup, email address, password, profile, or saved project database is required for the core tool.
No AI training
Your images are never collected, retained, or used to train AI models.
No ad network access
No advertising network receives your images or tool state from Grid Maker Pro.
Responsible disclosure
Security reports and privacy questions can be sent through /contact/.
§ III · Verification
Note · Verify itThis is the section that matters. Don't take our word — open DevTools, watch the Network tab, prove it.
You can check the claim yourself.
Open browser DevTools, switch to the Network tab, upload an image, and adjust a grid. The image workflow should not create an upload request to an external image-processing service.
Technologies used
- HTML5 Canvas API
- FileReader API
- Blob API for downloads
- Client-side JavaScript
What is not used
- No backend image processing
- No image database
- No user upload bucket
- No required login system
Security basics
- HTTPS via hosting TLS
- Static-export architecture
- No server-stored canvas projects
- Contact path for reports
§ IV · Versus upload-based competitors
Grid Maker Pro versus typical upload tools.
| Feature | Grid Maker Pro | Typical online tools |
|---|---|---|
| Image upload location | Your device only | Their servers |
| Processing location | Your browser | Cloud servers |
| Data storage | No server storage of images | May store temporarily |
| Account required | No | Often required |
| Email collection | Not required | Often required |
| Artwork privacy risk | Very low | Depends on provider |
§ V · Questions you might be asking
Privacy questions.
Can you see my uploaded images?
No. Your images are processed entirely in your browser using JavaScript. They never reach our servers.
Do you store images temporarily?
Not on our servers. There is no server-side upload, database or file store for reference images. Your own browser can keep up to five recently opened images in its local storage so you can reopen them; you can remove them from the Recent Images panel or by clearing site data for gridmakerpro.com.
What data do you collect?
Not your images. The website uses Google Analytics, Microsoft Clarity and PostHog to measure visits and tool usage. They receive page, click, scroll, device and browser information with cookie or browser identifiers, and Clarity and PostHog record session replays of page interactions. The replay configuration excludes the image editing and print surfaces and masks input fields. If you subscribe to the newsletter or email us, we receive what you send. The privacy policy lists each provider.
Can I use Grid Maker offline?
Yes. Once the page loads, the core image and overlay workflow can continue without an internet connection.
Is this suitable for commission references?
Yes, if your concern is avoiding third-party image uploads. The reference file remains in your local browser session.
In closing
The reference image stays where you put it.
Browser-only is not a privacy slogan — it's an architectural fact you can verify in five seconds with DevTools. Disclosure address: security@gridmakerpro.com.
Open the tool →