PhotoTimestampTool.com is a small cluster of free, browser-based photo utilities: adding a visible date/time stamp to a photo, converting HEIC photos to JPG/PNG/WebP, removing EXIF/GPS metadata, and compressing images — all built around the same idea: the photo never leaves your device.
These aren't four unrelated apps bolted together. They came from the same underlying problem — anyone with a phone full of photos eventually needs to do something to those files before sharing them: stamp a date on an inspection or insurance photo, turn an iPhone's HEIC files into something a website will accept, strip the hidden GPS location before posting a listing, or shrink a file that's too big for an email. Building all four around one shared in-browser engine (the same canvas re-encoding and ZIP-building code powers every tool here) meant each one could stay small, fast, and — the point that matters most — never need a server to do its job.
Every tool on this site runs entirely as JavaScript in your browser tab. Photos are decoded into an HTML <canvas> element, processed there (a stamp drawn on top, pixels resized, or simply re-encoded to drop metadata), and exported back out as a new file — all without a network request. HEIC files get one extra local step: a WebAssembly decoder (heic2any) unpacks them in-browser before the same canvas pipeline takes over. Batch jobs are zipped up using a small ZIP writer built for this site, also running locally. The full technical breakdown, tool by tool, is on the How It Works page.
PhotoTimestampTool.com is an independent site, not affiliated with Apple, Google, or any camera or phone manufacturer. It's free to use, with no account, no watermark, and no artificial file-size limit — because there's no server-side cost per image to recoup. Any ads on this site load standard, privacy-conscious ad units; they do not receive your photos, which is architecturally impossible given nothing is uploaded.
Questions, bug reports, or a photo tool you wish existed: [email protected] — see the Contact page.