The Blinkimg blog
Guides, format comparisons and engineering notes, every figure measured on the same engine you use.
Recent articles
- FormatsAVIF, AV1, Windows 11What is an AVIF file? Open it, convert it, or keep itWhat is an AVIF file? An image compressed with the AV1 video codec and stored in a HEIF container. Websites send AVIF because it is small, so a picture you save can arrive as .avif, and an older app may refuse it. Here is what the file holds, how to open it anywhere, and when to convert it.Sahadat Husain
- ProductPrivacy, Storage, The 24 hoursIs it safe to compress images online? What happens to your photoIs it safe to compress images online? Yes, when the tool says in writing how it handles your photo and deletes it on a clock you can check. Here are the questions worth asking any tool, and our answers, with the mechanism behind each.Sahadat Husain
- GuidesForms and portals, Exam forms, ResizePhoto not uploading in online form? Why a 50 KB file still failsYour photo is not uploading in the online form, and it is already under the cap? The byte cap is only one of the checks. The pixels, a minimum size, the format and the picture itself are the others. Here is how to pass each one, with the numbers from our own files.Sahadat Husain
- FormatsAVIF, WebP, JPGAVIF vs WebP vs JPG: which is better for a website, measuredFor a website, serve AVIF first with a WebP or JPG fallback. We ran our reference photo, a screenshot of our pricing page and a piece of flat art through one engine and kept the bytes. AVIF made the smallest file for the photo and the screenshot, 55% under the JPG on the photo. On the flat art, a lossless WebP was smaller still.Sahadat Husain
- GuidesHEIC, iPhone, JPGHow to convert HEIC to JPG on Windows, Mac and iPhone: every free wayHow to convert HEIC to JPG: on any device, drop the photos into a browser converter; on Windows, the Photos app once two codecs are installed; on a Mac, the Finder's Convert Image; on an iPhone, one setting stops the problem at the source. Here is each route, step by step, with our 1920 × 1280 reference photo, saved as HEIC, measured in every format.Sahadat Husain
- FormatsPNG, JPG, ScreenshotsPNG vs JPG: which is better for photos, screenshots and logosPNG vs JPG comes down to one rule: PNG for anything drawn, JPG for anything photographed. The bytes from real files show why it holds, what each mistake costs, and where WebP and AVIF take over.Sahadat Husain
- Engineeringsharp, libvips, libjpegInput image exceeds pixel limit: resizing a 400 MP JPEG with sharpThe sharp library stops a 400-megapixel JPEG with "Input image exceeds pixel limit", and lifting the limit alone can cost more memory than a small server has. Here is what we measured, what libvips really does with the file, and the one kind of JPEG that stays out.Sahadat Husain
Blog