This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
SmartWatermark
Batch watermark 500+ photos without uploading anything
SmartWatermark is a 100% browser-based watermarking tool. No servers. No uploads. All processing runs locally via Web Workers. • Bulk & Fast: Drop hundreds of images (JPEG, PNG, WebP, HEIC). Export as ZIP. • EXIF Shield: Strip GPS data locally, preserve copyright. • Smart Contrast: Watermarks auto-adapt to image brightness. Free to start. Pro license: $29 (one-time payment).
Hey Product Hunt! 👋
I'm Bertrand, the solo dev behind SmartWatermark.
Every watermark tool I tried required uploading my photos to unknown servers. As a privacy-conscious developer, that was unacceptable.
SmartWatermark processes everything directly in your browser. No upload, no server, no account needed. The engine runs strictly on Web Workers and Canvas 2D. Your files never leave your RAM.
The core stack:
→ Scale: Batch process 500+ images in seconds.
→ Privacy (EXIF Shield): Strip GPS, keep copyright.
→ Context-aware: Smart Contrast auto-inverts watermark color.
→ Resilient: Fully functional offline after first load.
Try it with a batch of heavy HEIC files. I'd love your feedback on the client-side memory management and export speed.
Try it free: https://app.smartwatermark.app
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About SmartWatermark on Product Hunt
“Batch watermark 500+ photos without uploading anything”
SmartWatermark was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #136 on the daily leaderboard. SmartWatermark is a 100% browser-based watermarking tool. No servers. No uploads. All processing runs locally via Web Workers. • Bulk & Fast: Drop hundreds of images (JPEG, PNG, WebP, HEIC). Export as ZIP. • EXIF Shield: Strip GPS data locally, preserve copyright. • Smart Contrast: Watermarks auto-adapt to image brightness. Free to start. Pro license: $29 (one-time payment).
SmartWatermark was featured in Productivity (650.7k followers), Privacy (11.1k followers) and Photography (142.8k followers) on Product Hunt. Together, these topics include over 146.8k products, making this a competitive space to launch in.
Who hunted SmartWatermark?
SmartWatermark was hunted by Tadjo Bertrand. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how SmartWatermark stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Tadjo Bertrand