Private by default.
Plain-English answers to the privacy questions makers actually ask. No legalese, no dark patterns. Last reviewed June 2026.
Every design starts private. Nothing publishes itself.
STL, 3MF, OBJ — all yours. We claim no rights.
Files you import are not made public unless you explicitly publish them.
- 01
Private by default
Every design starts private. Your work is saved locally in your browser (IndexedDB / localStorage). When you sign in, your projects sync to your account but remain private to you unless you explicitly publish them.
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Publishing is an explicit click
A design becomes public only when you tick the 'Publish' option in the Share dialog and submit. There is no auto-publish, no background sharing, and no opt-out switch — the default is and always will be private.
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Creators keep ownership. Exporters get a license.
If you designed it, you own it — whether you share it or not. ForgeSlicer never claims rights to your work, doesn't watermark exports, and doesn't embed invisible identifiers. If you download someone else's published design, the creator's chosen license (CC-BY-4.0, CC0, GPL, all-rights-reserved) governs what you can do with the file you exported. Substantially modifying a download into a functionally new design makes the derivative yours, subject to that same license.
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Uploaded files are not made public
Files you drag into the workspace (STL, OBJ, 3MF, SVG, images) are processed locally in your browser tab when possible. When server-side work is unavoidable (AI generation via Meshy.ai, server-side slicing), the file travels privately to that service for the operation only — never to the public Gallery.
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Voice + AI: third-party processing
Voice transcription (OpenAI Whisper) and AI mesh generation (Meshy.ai) involve sending your audio/prompt to those providers. We never make their inputs or outputs public on your behalf.
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Account data
If you sign in (Google Sign-In via Emergent-managed auth), we store your name + email + Google subject id. We use them to attribute your published designs and to email you about your account — nothing more. No marketing emails without opt-in.
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Analytics
PostHog session replay records your interactions for product analytics. Cross-origin iframes (the workspace canvas) are recorded for replay quality. You can opt out by sending a 'do not track' header or by emailing us.
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Data deletion
Email support@forgeslicer.com with the email you signed up with. We delete your account, your private designs, and your published designs within 30 days.