Add Watermark to Images Online Free

Protect your images with custom text watermarks. Adjustable opacity, position, and font size — completely private, your images never leave your device.

Choose an image to watermark

Add text watermarks to protect your images

Add Watermarks to Images Online Free

Protecting your images from unauthorized use is essential for photographers, designers, and content creators. Adding a watermark to your images helps establish ownership and deter theft. Our free online watermark tool makes it easy to add professional text watermarks to any image with full customization of opacity, position, font size, and color.

Our free watermark tool works entirely in your web browser using advanced JavaScript technology. This means your images never leave your device — they're not uploaded to any server. This approach ensures complete privacy for your photos and provides instant watermarking without waiting for uploads or downloads. Unlike Watermarkly, uMark Online, or Visual Watermark which upload your files to their servers, Browser Image Converter keeps everything local.

How to Add Watermarks

  1. Upload your image: Click the upload area or drag and drop your image file (PNG, JPG, WebP, and more).
  2. Enter watermark text: Type your copyright notice, brand name, website URL, or any custom text.
  3. Customize appearance: Adjust font size (12px to 120px), opacity (10% to 100%), and choose a position (center, corners, or custom).
  4. Preview and apply: See your watermark in real-time, then click add watermark to apply it.
  5. Download your image: Download your watermarked image instantly.

Why Choose Our Watermark Tool?

  • 100% Private: All processing happens in your browser — no server uploads, unlike Watermarkly or uMark
  • Instant Results: No waiting for uploads or processing queues
  • Full Customization: Control text, font size, opacity, color, and position
  • Professional Quality: Clean, crisp watermarks that look professional on any image
  • No Limits: Watermark unlimited images with no daily quota restrictions
  • Always Free: No subscriptions, no hidden fees, no premium tiers
  • No Registration: No account, no email, no sign-up required

Watermark Customization Options

  • Text: Add any custom text including copyright symbols (©), your name, brand, or website URL
  • Font Size: Adjust from 12px to 120px for perfect visibility on any image size
  • Opacity: Control transparency from 10% to 100% to balance protection and aesthetics
  • Position: Place watermarks at center, any corner, or custom coordinates for precise placement

When to Add Watermarks to Your Images

Add watermarks when sharing photos on social media, portfolio websites, client proofs, or stock photo previews. Watermarks help protect your intellectual property while still allowing you to showcase your work. For best results, use a semi-transparent watermark placed in a hard-to-crop position.

Before adding a watermark, you might want to crop your image to the perfect composition, resize it to your target dimensions, or rotate it to fix orientation. After watermarking, consider using our Image Compressor to optimize the file size for web sharing.

Frequently Asked Questions

What is the difference between a text watermark and an image watermark?
A text watermark adds typed text (like your name, copyright symbol, or brand name) directly onto the image. An image watermark overlays a logo or graphic (usually a transparent PNG) on top of your photo. Text watermarks are quick and easy to create, while image watermarks are better for professional branding with logos.
How do I adjust watermark transparency/opacity?
Our watermark tool includes an opacity slider that lets you control how transparent the watermark appears. Lower opacity (10-30%) creates subtle, barely visible watermarks that don't distract from the image. Higher opacity (70-100%) makes the watermark very prominent for stronger protection. Most users find 30-50% opacity to be the ideal balance between visibility and aesthetics.
Where should I position the watermark on my image?
The ideal watermark position depends on your goal. Center placement offers the most protection as it's hardest to crop out. Bottom-right corner is popular for professional photography as it's visible but not intrusive. Our tool supports center, all four corners, and custom positioning so you can place the watermark exactly where you need it.
Can I add watermarks to multiple images at once?
Our tool allows you to watermark images one at a time with full customization of text, font size, opacity, and position for each image. This gives you precise control over every watermarked image. For bulk watermarking, you can quickly process multiple images in sequence since the tool remembers your watermark settings.
Is this watermark tool safe? Are my images uploaded to any server?
Yes, it is completely safe. Your images are NEVER uploaded to any server. All watermarking happens locally in your web browser using JavaScript. Your files never leave your device, ensuring complete privacy and security. This is unlike cloud-based tools like Watermarkly or uMark Online which process images on their servers.

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