Protect your photos instantly — add text or logo watermarks in your browser. Batch process up to 10 JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, or PDF files. Your files never leave your device. No upload. No signup. Free forever.
JPEG · PNG · WebP · GIF · BMP · TIFF · AVIF · PDF · Max 10
Most watermark tools upload your photos to a remote server — that means your private images, client work, or product photos are sent somewhere you can't control. I7 Pixel is a completely free watermark tool that works entirely inside your browser. Whether you need to add a watermark to images online, watermark photos for a portfolio, add a logo watermark to product shots, or bulk watermark images before a client delivery — nothing is ever transmitted, nothing is stored on any server. Your images stay yours, processed entirely on your own device in seconds.
Unlike most online logo watermark tools and image watermark makers that upload your files to a cloud server for processing, I7 Pixel runs 100% inside your web browser. The moment you select your images, they are processed locally using the browser's built-in Canvas API — the same technology used by professional design apps. No file is ever transmitted over the internet. This makes our free watermark tool the safest choice for watermarking confidential client work, unreleased product photos, personal images, or any file you wouldn't want stored on a third-party server. It's the only free online watermark generator that lets you watermark pictures online with zero risk to your privacy.
Adding a watermark to your images online takes under a minute — no software, no Photoshop, no signup. This free watermark tool supports JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, and PDF. Here's exactly how it works.
There are dozens of ways to add a watermark to an image online — but most tools make you choose between privacy, features, or cost. Here's what makes this one different.
Type any text — your name, brand, copyright notice, or "CONFIDENTIAL" — and style it exactly how you want. Choose from eight built-in font families including serif, sans-serif, monospace, and display options. Set size anywhere from 8px to 300px, pick bold, italic, or bold-italic style, and choose any color using the hex picker or preset swatches. You can even add a text stroke with a contrasting color to make your watermark readable on both dark and light backgrounds. This is the most flexible free text watermark tool available without signing up for anything.
Switch to Image/Logo mode to add a logo watermark to your photos. Upload any PNG, JPG, or WebP file as your watermark image — transparent PNG logos work best, as the tool preserves transparency perfectly. Control the logo's size with a scale slider (10% to 300%), set the opacity, and rotate it to any angle. Whether you're a photographer protecting portfolio shots, a business branding product images, or a designer watermarking previews for clients, the logo watermark mode gives you professional results in seconds — completely free.
Need to bulk watermark images for a client delivery, product catalogue, or social media batch? Drop up to 10 files at once — you can mix formats freely (JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, and PDF all supported). Set your watermark settings once and click "Apply Watermark to All Files." Every file gets the same watermark treatment instantly. Download them individually or use "Download All" to grab everything in one click. This saves hours compared to editing each photo one by one in image editing software, and it's entirely free with no file count subscription required.
PNG is the most common format for watermarking because it supports transparency — both in the source image and in the watermark itself. Here's how format support works.
From solo photographers to e-commerce sellers, watermarking is one of the most practical ways to protect and brand your visual content online. This free watermark tool is used by people who need to add watermark to image online quickly, without installing software or paying for a subscription. Whether you want to add logo watermark overlays to product photos or apply a copyright text mark to your portfolio, the use cases below cover the most common scenarios.
No app to install. Open this page in your phone's browser and watermark your photos directly — works on Safari, Chrome, Firefox, and Samsung Internet on any iOS or Android device. It's the fastest way to watermark photos online from a phone, with no compression and no upload to any server.
Most watermark apps on the App Store or Play Store require a subscription or compress your photos. This browser tool is free forever, adds no compression beyond your chosen quality setting, and — critically — never uploads your photos to any server. Your Camera Roll stays private. Processing happens entirely on your phone's own hardware via the browser's Canvas API. No account. No install. No storage permissions needed.
Everything you need to know about using the watermark tool.
I7 Pixel's watermark tool is completely free forever — no hidden tiers, no file size limits, no signup. What sets it apart: your images are never uploaded to any server. Everything runs in your browser, making it the safest and most private free watermark generator available online.
Open this page in any browser — no software needed. Upload your image, type your watermark text or upload a logo, choose position and style, then click Apply and Download. The entire process takes under a minute and works on any device including mobile.
Yes. Type your copyright text (e.g. © 2026 Your Name) in the watermark field, choose your font, color, and opacity. Enable Tile / Repeat for full-image coverage — the most effective way to prevent unauthorized use. Works on JPEG, PNG, WebP, and more.
Switch to the Image / Logo tab, upload your logo file — PNG with transparent background works best. Control size, opacity, position, and rotation. Apply to up to 10 images in one batch, completely free, with no file ever leaving your device.
No — never. All watermarking runs entirely inside your browser using the HTML5 Canvas API. Your files never leave your device and are never sent to any server. Safe for private, confidential, or commercially sensitive images.
Supports JPEG PNG WebP GIF BMP TIFF AVIF and PDF. Mix formats freely in the same batch — for example, watermark five JPEGs and three PNGs together in a single run.
Yes — up to 10 files per batch. Drop them all in, configure your watermark once, click "Apply Watermark to All Files," and download individually or all at once. No other free watermark maker offers this without an upload or account.
Upload your PNG file, set your text or logo watermark, choose position and style, then export as PNG output for a fully lossless result — no quality reduction. The entire process runs in your browser in seconds, with no upload required.
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All tools at I7 Pixel run in your browser — no uploads, no accounts, always free.