ImagycArticles
Guides to images, video and audio
Formats, quality, file size and metadata for images, video and audio: what changes in weight, compatibility and search, with a source for every claim.
Video and audio
WhatsApp audio to MP3: how to save and convert voice notes
Turn a saved WhatsApp voice note into an MP3. Find the file on Android or export it from your iPhone before converting.
Read the guide →MP4 to MP3: how to extract audio from a video
Save the sound from a lecture, interview or video as an MP3. Learn which bitrate to choose and how to convert several files.
Read the guide →How to reduce video file size for WhatsApp and email
Make a saved video easier to send. Compare resolution, bitrate and the official limits for WhatsApp, Gmail and Outlook.
Read the guide →iPhone video won't play on Windows: MOV and HEVC fixes
An MP4 can still contain HEVC. Learn how to play the original without re-encoding and when conversion is actually needed.
Read the guide →Video formats explained: MP4, MOV, MKV, WebM and AVI
A file extension cannot tell you its quality or playback support. Compare containers and choose a format for the actual destination.
Read the guide →Audio formats explained: MP3, AAC/M4A, WAV, FLAC and OGG
Choose a format for what you need to do with the recording. Compare file size, preservation and editing without confusing them.
Read the guide →MP3 quality: should you choose 128, 192 or 320 kbps?
A higher bitrate increases file size, but the audible benefit varies. Choose using the source, destination and a fair listening test.
Read the guide →Video and audio metadata: location, dates and device details
A recording can contain more than pictures and sound. Review location, dates, device details and audio tags before sharing.
Read the guide →Video codecs explained: H.264, HEVC, VP9 and AV1
Find out how video compression affects size and playback. Choose a codec using the destination and the actual output.
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Images
Why optimize images? Faster pages, less data and a better experience
Planning to optimize your website images? Read the full guide to decide what to compress, what to resize and how to check the result on mobile before publishing.
Read the guide →How to find images that are slowing down your website
Is the page slow on phones and you cannot tell which image is to blame? Learn to find the file, measure it and confirm the fix.
Read the guide →JPEG, PNG, WebP, AVIF and JXL image formats for websites
Before converting your files, read the full guide and compare browser support, including mobile browsers. The right choice depends on the image and on the people who will open it.
Read the guide →Image resolution for desktop and mobile without slowing your website
Need to choose image dimensions? Read the full guide for practical size ranges and a responsive image example. Use them as starting points for the space your page actually provides.
Read the guide →How to name images for SEO and organize your files
Organizing catalog images or renaming files that are already published? Read the full guide for naming examples and a catalog convention before changing their URLs.
Read the guide →Image metadata and what removing it changes in advertising
Before removing metadata from an advertising image, read the full guide to see which information is worth keeping and what removal actually changes about image identification.
Read the guide →How to convert PNG to SVG and use it on your website without errors
Does your SVG turn black, lose sharpness or fail to appear? Read the guide and learn how to prepare it before publishing on your website.
Read the guide →How to remove the background from an image for free, with no watermark and no upload
Need a transparent PNG for a catalog, ad or logo? Learn to remove the background in your browser, check the cutout and pick the right format.
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