Guides, comparisons, and tips for working with files. All tools run 100% in your browser — no uploads, no sign-up.
You usually can't shrink a ZIP by re-zipping it — it's already compressed. Here's what actually makes a ZIP smaller, and how to hit a 1MB (or any) target. Free, browser-based, no uploads.
Understand the differences between common audio formats. Learn when to use MP3, WAV, AAC, OGG, and FLAC, and how to convert between them.
Step-by-step guide to reducing audio file sizes for email, WhatsApp, Telegram, and other messaging apps. Compress MP3, WAV, and other formats for free in your browser.
Learn how to reduce image file sizes for websites and social media. Step-by-step guide to compressing images for faster page loads without visible quality loss.
Step-by-step guide to reducing video file size so you can send it via email, WhatsApp, Telegram, and other messaging apps. Free, browser-based compression.
Video upload limits by platform: Instagram 250MB, TikTok 500MB, YouTube 256GB, X 512MB, Facebook 4GB, plus duration and format specs for each.
Find out why your photos take up so much storage and learn simple ways to reduce their file size. Covers megapixels, formats, metadata, and compression.
Discord's free upload limit is 10MB (50MB Nitro Basic, 500MB Nitro). See every tier's cap and how to compress any image, video, or PDF to fit.
Understand the differences between HEIC and JPG formats. Learn when to use each and how to convert HEIC to JPG for maximum compatibility.
Step-by-step guide to reducing PDF file size for Gmail, Outlook, and other email providers. Free, browser-based, no uploads.
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