Guides and instructions
Clear articles about image, video and document formats: what to choose, how to open files and how to convert them without losing quality.
We explain file formats in plain language: how they differ, where they open and how to convert them to the format you need.
Image converter
ImagesWhat is AVIF?AVIF is a modern image format. Learn how to open AVIF files on Windows, macOS and Android, and when to convert them to JPG or PNG.2 min readImagesWhat is HEIC?Learn what HEIC is, why Windows does not open iPhone photos, and how to convert HEIC to JPG or PNG without hassle.2 min readImagesWhat is SVG?Learn what SVG is, why it is used for logos and icons, why some apps cannot open it, and how to convert SVG to PNG or AVIF.2 min readImagesWhat is TIFF?Learn what TIFF is, why it is used for scans and print, why files are so large, and how to convert TIFF to JPG or PNG for the web.2 min readImagesHow to open HEIC on AndroidLearn how to open HEIC photos on Android, why some apps cannot see them, and how to convert HEIC to JPG or PNG without installing software.1 min readImagesHow to make a faviconStep by step: create a website favicon with 16, 32 and 48 pixel sizes, transparency, PNG to ICO conversion and the correct HTML link tag.2 min readImagesPNG vs JPGCompare PNG and JPG: compression, transparency, file size and compatibility. Learn which format to choose for photos, graphics, websites and print.2 min readImagesWebP vs JPGCompare WebP and JPG: file size, quality, transparency and browser support. Learn when WebP is worth using and when JPG is the safer choice.2 min read
Video and GIF converter
VideoWhat is M4A?Learn what M4A is, how it differs from MP3, why it suits iPhone, and how to convert M4A to MP3 or WAV for any device.1 min readVideoWhat is MKV?Learn what MKV is, how it differs from MP4, why it does not open on a phone, and how to convert MKV to MP4, WebM or MOV.1 min readVideoVideo formats explainedCompare popular video formats: compatibility, compression and use cases. Learn when to convert video to MP4, WebM or GIF.2 min readVideoHow to extract audio from videoStep by step: extract audio from MP4, MOV and WebM. Compare MP3, WAV and M4A for listening, editing and podcasts.1 min readVideoHow to make a GIF from videoA step-by-step guide to making a GIF from MP4, MOV or WebM, the settings that affect file size, and how to avoid a heavy animation.2 min readVideoHow to reduce video sizePractical ways to reduce video size: change the format, lower bitrate and resolution, trim the clip and avoid turning the video into a heavy GIF.2 min read
Document and PDF converter
DocumentsHow to convert a photo to PDFA step-by-step guide to saving JPG or PNG as PDF, choosing the right size, and converting the document back to an image if needed.2 min readDocumentsHow to convert XLSX to CSVA step-by-step guide to converting XLSX to CSV: which sheet is saved, what happens to formulas, how to choose encoding and where CSV is useful.1 min readDocumentsHow to reduce PDF sizeReduce PDF size by compressing images, removing pages and converting to JPG or DOCX. Learn what works and what hurts quality.2 min readDocumentsPDF vs DOCXCompare PDF and DOCX: editing, printing, compatibility and protection. Learn when to save a document as PDF and when to keep it in Word.2 min read