The blog.
Straight answers about video and audio formats, what they are, which to use, and how to convert between them.
How to Convert HEIC to JPG (Free, No Upload)
Your iPhone saves photos as HEIC, which Windows, Android and most websites can't open. Here's the fastest, most private way to turn them into universal JPGs.
Read guide 5 min readHow to Convert a PDF to JPG (Free, No Upload)
Need a PDF page as an image for a slide, a chat, or social media? Here's how to turn every page into a JPG, free and privately, without uploading your document.
4 min readHow to Merge PDF Files Into One (Free, No Upload)
Bundling a cover letter and résumé, or a stack of scans? Here's how to merge PDFs into one tidy file, in the order you want, without uploading anything.
4 min readPNG vs JPG: Which Should You Use? (With Examples)
PNG or JPG? The short answer: JPG for photographs, PNG for text, logos and screenshots. Here's the why, and how to convert either way for free.
4 min readHow to Resize a Video for Any Platform
Get your video into the right dimensions for YouTube, Reels, TikTok or a square feed without stretching or losing quality. Aspect ratio, fit modes and presets explained.
6 min readHow to Convert MOV to MP4 (Free, No Upload)
A plain-spoken guide to converting Apple's MOV files to MP4 so your iPhone and QuickTime videos finally play on Windows, in editors, and everywhere else.
6 min readHow to Convert M4A to MP3 (Free, In Your Browser)
M4A is Apple's AAC audio, and some cars and players want MP3. Here's how to convert it, why bitrate matters, and how to do it privately in your browser.
6 min readHow to Compress a Video (Free, Without Losing Much Quality)
A step-by-step guide to making a video file smaller, by target size or quality, without uploading it or adding a watermark.
5 min readHow to Crop a Video (Drag to Reframe, Free & Private)
A step-by-step guide to cropping a video, drag a box to keep exactly the part of the frame you want, no upload required.
4 min readHow to Extract Audio From a Video (Free MP3, No Upload)
A step-by-step guide to pulling the audio out of a video and saving it as an MP3, free, private, no upload.
4 min readHow to Mute a Video (Remove Sound, Keep the Picture)
A quick guide to removing the sound from a video while leaving the picture exactly as it was, free and private.
3 min readBest Audio Format: MP3, WAV, FLAC, AAC & More
MP3, WAV, FLAC, AAC or Opus? A plain-spoken guide to which audio format wins for sharing, editing, archiving and streaming.
5 min readFLAC vs MP3: Is Lossless Really Worth It?
FLAC keeps every bit of the master; MP3 is smaller and plays everywhere. Here's when lossless actually matters.
5 min readH.264 vs H.265 (HEVC): Which Should You Use?
H.265 halves file size at the same quality, but H.264 plays on everything. Here's how to choose the right codec.
5 min readHow to Convert MKV to MP4 (Free, No Upload)
A plain-spoken, step-by-step guide to converting MKV to MP4 for free without uploading your file or losing quality.
4 min readHow to Rotate a Video (and Fix Sideways Clips)
A plain guide to rotating a sideways video 90 or 180 degrees, why phones cause it, and how to bake the fix into the frames.
4 min readM4A vs MP3: Which Audio Format Is Better?
M4A sounds a bit better byte-for-byte, but MP3 plays on everything. Here's how to choose between the two audio formats.
4 min readMP3 vs MP4: What's the Difference?
MP3 is audio only; MP4 is a video container that also holds audio. Here's the real difference and when to convert between them.
4 min readWAV vs MP3: When to Use Each
WAV is lossless and huge; MP3 is tiny and lossy. Here's exactly when to use each, with real file sizes and a simple rule.
4 min readWebM vs MP4: Which Video Format Should You Choose?
WebM is smaller and built for the web; MP4 plays everywhere. Here's how to pick the right one and convert between them.
5 min readWhat Is a Codec? Codecs vs Containers Explained
A plain-English guide to codecs vs containers, lossy vs lossless, and why an MP4 or MKV sometimes refuses to play.
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