Blog
Guides and how-tos for getting the most out of every ByteTools utility.
How to Convert JPG & PNG Images to PDF Online Free
Learn how to turn JPG, PNG and WebP photos into a single PDF in your browser, choosing A4, Letter or fit-to-image pages, with no uploads.
Convert an Image to a Base64 Data URL (Developer Guide)
How to convert an image to a Base64 data URL online and get copy-ready HTML and CSS snippets. Free, instant and fully private in your browser.
Check Image Dimensions and File Size Online (Free Guide)
How to check image dimensions, file size, aspect ratio and megapixels online for one or many images at once, privately and instantly in your browser.
How to View a Photo's EXIF Metadata Online
See a photo's hidden EXIF data — camera, date, exposure and GPS location — right in your browser. Check what your images reveal before sharing. Private and free.
How to Check an Image's DPI Before Printing
Check the real DPI of any image in your browser and see its exact print size at 300 and 150 DPI. Reads true PNG and JPEG metadata — free and private.
How to Minify HTML Online and Shrink Page Size
Minify HTML online to strip comments, collapse whitespace, and cut page weight. See exact bytes saved instantly — free, private, and runs in your browser.
How to Beautify HTML Code Online for Cleaner Markup
Beautify HTML online with consistent indentation that respects void elements and never touches script, style, or pre content — free, private, in your browser.
HSL to HEX: Convert With Live Sliders and Preview
Drag hue, saturation and lightness sliders to get instant HEX and RGB codes, with a live swatch. Build tonal scales and pastels the easy way.
Hreflang Tags Explained: A Guide for Multilingual SEO
Learn how hreflang tags serve the right language version to each user, avoid the common return-tag mistake, and generate them free online.
How to Convert HEX to RGB (and RGBA) in Seconds
Convert HEX color codes to rgb() and rgba() instantly, including 8-digit alpha and whole lists in batch mode, all privately in your browser.
HEX to HSL: The Smarter Way to Edit Color in CSS
Convert HEX codes to hsl() and hsla() instantly and learn why HSL makes hover states, themes and color scales far easier to build.
How to Convert iPhone HEIC Photos to JPG
iPhone photos won't open on your PC? Convert HEIC to JPG right in your browser — private, free, with clear help if your browser can't decode HEIC.
How to Add and Remove GST: A Simple Guide
Add GST to a net amount or extract it from an inclusive price, with 5%, 12%, 18% and 28% slabs and a CGST/SGST split, using a free browser GST calculator.
How to Convert an Image to Black and White Online
Convert any photo to grayscale online with an adjustable intensity slider. Make images black and white or partially desaturated, free and private in-browser.
How to Create CSS Gradients Visually (Linear, Radial, Conic)
A practical guide to designing linear, radial and conic CSS gradients with live preview and copyable code, entirely in your browser.
How to Convert GPX Tracks to KML for Google Earth
Convert GPX files from Garmin, Strava or any GPS app to KML for Google Earth. Waypoints, tracks and routes preserved with elevation — free and private.
How to Turn a GIF Into a PNG Still Image
Convert GIF to PNG in your browser to grab a crisp still frame or upgrade past GIF's 256-color limit. Free, instant, and completely private.
How to Convert GeoJSON to KML for Google Earth Free
Convert GeoJSON to KML for Google Earth free in your browser. Points, lines, polygons with holes and feature properties supported — no upload, fully private.
Flip & Mirror Images Online: Fix Selfies and Transfers
Mirror any image horizontally or vertically in one click. Free online image flipper for selfies, iron-on transfers and design — private, lossless, no uploads.
FAQ Schema in 2026: Is It Still Worth Adding?
Generate valid FAQPage JSON-LD from your questions and answers, and understand exactly when FAQ markup still helps in a post-rich-result world.