Photo never leaves your device
The watermark is drawn onto your image entirely in your browser, so there's no upload and no server copy of your original photo.
Add Watermark to Image locally in your browser. Customize text, position, opacity, and size for JPG, PNG, or WebP files—free, private, and no upload.
Choose or drop an image
JPG, JPEG, PNG, WEBP· up to 20.0 MB per file
Processed only in your browser — never uploaded
Free single-file processing in your browser; no cloud conversion quota is used.

Add Watermark to Image locally in your browser. Customize text, position, opacity, and size for JPG, PNG, or WebP files—free, private, and no upload.
The watermark is drawn onto your image entirely in your browser, so there's no upload and no server copy of your original photo.
Fine-tune text, position, opacity and font size until the watermark strikes the right balance between visible and unobtrusive.
Every adjustment renders immediately, and the final image is ready to download the moment you're happy with it — no processing queue.
Choose a file, review the options, and create the result.
Choose a JPG, PNG or WebP from your device — it opens directly in your browser and is never uploaded.
Enter up to 64 characters — your name, brand or website — and see it rendered on the photo instantly.
Place the text in one of five positions, set its opacity from 10–100% and its size from 2–20% of the image, previewing every change live.
Save the result in its original format. The text is burned into the pixels, so keep an unmarked original if you'll need one later.
Choose settings that match the result you need.
↔ Swipe sideways to view every column.
| Need | Recommended setting | Best for |
|---|---|---|
| Watermark text (up to 64 characters) | Use a concise © credit, name, brand or website. Stay within the 64-character limit to avoid overflow. | Use a concise © credit, name, brand or website. Stay within the 64-character limit to avoid overflow. |
| Position (top-left / top-right / center / bottom-left / bottom-right) | Corners keep the credit discreet; center placement is harder to crop out. | Corners keep the credit discreet; center placement is harder to crop out. |
| Opacity (10–100%) | Use 30–50% for a subtle mark or 70–100% for stronger protection. Check the live preview. | Use 30–50% for a subtle mark or 70–100% for stronger protection. Check the live preview. |
| Font size (2–20% of image size) | Size scales with the image. Around 5% is discreet; 10–20% is harder to remove from public photos. | Size scales with the image. Around 5% is discreet; 10–20% is harder to remove from public photos. |
Review what the tool accepts, how it processes the file, and what it produces.
↔ Swipe sideways to view every column.
| Feature | JPG | PNG |
|---|---|---|
| Format | JPG | PNG |
| Processing | Runs in your browser | Runs in your browser |
| Result | Add Watermark to Image locally in your browser. Customize text, position, opacity, and size for JPG, PNG, or WebP files—free, private, and no upload. | Add Watermark to Image locally in your browser. Customize text, position, opacity, and size for JPG, PNG, or WebP files—free, private, and no upload. |
The output is ready for common workflows supported by its format.
JPG (also written JPEG) is the most widely used lossy image format for photographs, standardized by the Joint Photographic Experts Group in 1992. Practically every camera, phone, and image application can create and open it.
Its strengths are small file sizes for photos and universal compatibility across devices, browsers, and software. The trade-offs: lossy compression introduces artifacts, there is no transparency support, and quality degrades a little more with every re-save. Use JPG for photographs; choose PNG for screenshots, logos, or anything that needs sharp edges or transparency.
PNG is a lossless raster image format created in the mid-1990s as a patent-free replacement for GIF. It is the standard choice for screenshots, logos, UI graphics, and any image that needs transparency.
PNG preserves every pixel exactly and supports a full 8-bit alpha channel, so text and sharp edges stay crisp. The downside is size: photographs saved as PNG are far larger than the same image as JPG or WebP. Support is universal in browsers and editors, making it a safe default for graphics — just avoid it for large photo collections.
WebP is a modern image format developed by Google that supports both lossy and lossless compression, along with transparency and animation. At comparable visual quality it usually produces noticeably smaller files than JPG or PNG.
Every current browser supports WebP, which makes it an excellent default for web delivery. Outside the browser the picture is mixed: older desktop software, some email clients, and legacy systems may fail to open it. If a recipient cannot view a WebP file, convert it to JPG for photos or to PNG when transparency must be preserved.
Processing happens in your browser, so the selected file is not uploaded.
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Add Watermark to Image locally in your browser. Customize text, position, opacity, and size for JPG, PNG, or WebP files—free, private, and no upload.
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