Guides
Longer articles on the questions people search before or after using a tool: which format to pick, how a size limit actually works, why a resize came out blurry. Each guide links to the tools that solve the problem it describes.
All guides
Base64 Images: When to Inline and When Not To
When encoding an image as Base64 actually helps a page, when it makes things worse, and the real size overhead with a worked example.
How to Compress Images Without Losing Quality
How image compression actually works, why a 67 percent smaller file can still look identical, and how to tell when you have pushed too far.
How to Make a Favicon That Looks Sharp on Every Device
Why most favicons look blurry or unreadable, and how to design one that stays legible from a 16 pixel browser tab up to a 512 pixel home screen icon.
How to Reduce a Photo to 100 KB for Online Forms
Get a photo under 100 KB for a job portal, exam or visa form in one step, with a real before and after example. Free, runs in your browser, nothing uploaded.
What Image Size and Format to Use for a Website
The image sizes and formats that actually load fast on a website, with real before and after numbers from compressing a typical photo.
JPG vs PNG vs WebP: Which Format to Choose in 2026
JPG, PNG and WebP explained with real file size numbers for the same image, so you can pick the right format instead of guessing.
Passport Size Photo in Pixels, Inches and mm by Country
Passport photo sizes in pixels, inches and mm for the US, UK, India, Pakistan, Canada and more, with the 300 DPI pixel size and the correct ratio.
Social Media Image Sizes Cheat Sheet 2026
Current image sizes for YouTube, Instagram, Facebook, LinkedIn, X, Pinterest, TikTok and WhatsApp, checked against each platform's own help pages.
What Is DPI? How to Check It and When It Matters
DPI explained with a worked example: how to check the DPI of an image, why screens ignore it, and when it really matters for print and passport photos.
Image Blurry After Resizing? Why It Happens and the Fix
Enlarging a photo is what blurs it, not shrinking it. Find the cause in seconds, check how far you stretched it, and fix it free in your browser.