How to Convert Images to Black & White, Greyscale or Sepia — Free Online Guide
Black and white photography has a timeless quality that colour cannot always match. A great portrait, landscape or architectural shot often has more impact in monochrome. Equally, sepia and vintage effects can transform an ordinary modern photo into something that feels classic and enduring. Here is how to apply these effects to any image instantly, for free, without Photoshop.
What Is the Difference Between Black & White and Greyscale?
These terms are often used interchangeably but they produce slightly different results. Greyscale is a direct conversion — each pixel's colour is replaced with a grey value based on its brightness. Black and white in photography refers to a higher-contrast treatment where tones are pushed toward true black and white, creating a more dramatic look. Both are available in our tool, along with sepia and several other effects.
The 8 Colour Effects Available
- Black & White: High-contrast monochrome with boosted contrast — classic photography look
- Greyscale: Pure grey conversion without contrast boost — softer and more neutral
- Sepia: Warm brown tones that evoke vintage and antique photographs
- Vintage: Faded, slightly desaturated retro look popular in film photography
- Vivid: Boosted saturation and contrast — makes colours pop dramatically
- Cool Tone: Blue-shifted tones for a calm, modern aesthetic
- Warm Tone: Golden hour warmth — ideal for portraits and landscapes
- Original: Restore the image to its original colours
When to Use Each Effect
- Black & White: Portraits, architecture, street photography, artistic shots
- Greyscale: Documents, screenshots, editorial images
- Sepia: Family photos, weddings, historic or nostalgic content
- Vintage: Travel photography, lifestyle content, social media posts
- Vivid: Product photography, nature shots, food photography
- Cool: Corporate imagery, tech and design content, winter photography
- Warm: Portraits, golden hour shots, food and lifestyle photography
Fine-Tuning Your Effect
Beyond selecting a preset effect, our tool gives you individual control over brightness, contrast and saturation. This lets you create a custom look beyond the standard presets. For example, you can take the Greyscale preset and increase contrast to get a more dramatic result, or apply Sepia with reduced saturation for a subtler vintage feel.
How to Apply Colour Effects Online for Free
- Open the B&W / Colour Effects tool
- Upload your image (JPG, PNG or WebP)
- Click any effect preset to apply it instantly
- Use the brightness, contrast and saturation sliders to fine-tune
- Select your output format (JPG, PNG or WebP)
- Download your transformed image
Which Format to Use for the Download?
For black and white and greyscale images, JPG at 90% quality gives the smallest file size with excellent results. For images you plan to use on websites, WebP is even smaller. If you need a transparent background version, choose PNG — though colour effects do not typically require transparency.