format guides
Format guides, explained in plain English
What JPG, PNG, WebP, HEIC, MP3, WAV, FLAC, WebM and the rest actually do — and which one you should reach for. Each guide is short, specific, and honest about the trade-offs, with the matching converter one click away.
Image formats
JPG vs PNG — which image format?
JPG vs PNG explained: compression, transparency, file size, and when each wins. Convert between them online — free, in your browser, no uploads.
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PNG vs WebP — which to ship?
PNG vs WebP explained: WebP matches PNG’s losslessness at roughly half the file size. See when to switch — then convert PNG to WebP with a free PNG format converter that runs entirely in your browser.
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HEIC vs JPG — iPhone photo compatibility
Why your iPhone saves HEIC, when it becomes a problem, and how to convert HEIC to JPG online in your browser — free, no uploads, no app to install.
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SVG vs PNG — vector or raster?
SVG scales to any size; PNG stays sharp at one. Learn which you need for logos, icons, and photos — and convert SVG to PNG free, in your browser.
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What is WebP?
WebP is Google’s image format that makes web images 25–35% smaller with no visible quality loss. A plain-English explainer — and how to convert images to WebP online, free, in your browser.
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GIF vs WebP — animated images
GIF is heavy and stuck at 256 colors; WebP animates at a fraction of the size. See the real differences and convert images free, in your browser.
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HEIC vs HEIF — explained
HEIC and HEIF are the same codec in different containers. A plain-English explainer, plus a free online converter that turns HEIC into JPG or PNG, no uploads.
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Image format benchmarks 2026
Real file-size numbers for WebP, JPG, PNG, and AVIF at equal visual quality, measured in-browser. No upload, no server — just data.
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MP3 vs WAV — which audio format?
MP3 is small and universal; WAV is exact and huge. Learn which your project needs, then convert WAV to MP3 or MP3 to WAV free, in your browser.
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FLAC vs MP3 — lossless vs lossy
FLAC is a perfect copy; MP3 is an approximation. Learn when the difference matters, and convert FLAC to MP3 with a free audio converter — no uploads.
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How-to guides
Best free image converter 2026
The best free image converters in 2026 that run in your browser with no upload. Compare features, privacy and speed — and try them directly on this page.
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Best free PDF to JPG converter 2026
The best free PDF to JPG converters in 2026 that run in your browser with no upload. Compare privacy, quality and speed — try one directly on this page.
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How to make a PDF from images
Turn JPG, PNG, WebP or HEIC photos into a single PDF in seconds, entirely in your browser. Step-by-step guide, no account, no upload.
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How to convert HEIC to JPG on any device
Convert HEIC to JPG online in your browser — no app to install, no photo uploaded. Step-by-step for every device.
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How to compress images online
Shrink large photos without uploading them — convert JPG to WebP or PNG to WebP free, in your browser, and honest about quality.
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How to optimize photos for the web
Cut page weight without visible quality loss — convert photos to WebP or re-encode to JPG free, in your browser. An honest guide, no uploads.
Read the guide →Prefer to just convert?
No reading required — drop a file into the converter and pick the output format. It runs entirely in your browser, free and unlimited.