You spend hours editing a video. You export it, upload it, publish it — and only then notice the resolution was wrong, the audio is clipping, or the file was three times larger than the platform allows.
A pre-publish media health check catches these issues silently, before they cost you a re-upload or a rejected file.
The gap between “looks fine” and platform requirements
Every major platform has strict technical requirements that are easy to miss by eye. None of these problems are visible in your local preview — they only appear after publishing.
Rejects video files over 4 GB outright.
Loudness normalization makes badly-levelled audio sound distorted, not just quiet.
Auto-degrades blurry 1080p footage when it detects low sharpness.
What a media health check scans
A good health check runs five fast checks and reports results in plain language — pass, warning, or fail, each with a one-line explanation. No broadcast jargon.
Resolution
Flags footage below the minimum for your target platform.
Aspect ratio
Catches the wrong ratio — like 16:9 on TikTok instead of 9:16.
Blur / sharpness
Frame clarity below the threshold where platforms degrade quality.
Audio loudness
Peaks outside the –14 LUFS streaming standard.
File size
Over the upload limit for the platform you selected.
Live demo
See it run on a real file
Pick where you’re publishing, then run the check. Same file, different rules — watch what passes.
- 1Resolution
- 2Aspect ratio
- 3Blur / sharpness
- 4Audio loudness
- 5File size
What the output looks like
Instead of a cryptic error like LUFS deviation exceeds –3 dBFS threshold, a creator-focused tool tells you what’s wrong and what to do about it.
Audio loudness · WarningYour audio peaks at –6 LUFS. TikTok targets –14 LUFS — this will sound distorted after platform normalization.
Aspect ratio · FailFile is 16:9. TikTok expects 9:16 vertical video. Use Crop & Resize to reframe before uploading.
The fix is obvious from the message itself — no Googling the error, no guessing.
The case for pre-publish checks
Why before publishing, not after
- 1
Re-encoding after the fact is expensive
Re-exporting and re-uploading a 2 GB file costs real time. Catching the issue before the first upload is always faster.
- 2
Platform compression is silent and permanent
Once a platform re-compresses your video, you can't undo it. The original quality is gone from their servers.
- 3
Batch jobs fail silently
Exporting for multiple platforms at once? One bad file can fail after the others succeed — and you may not notice.
- 4
A 2-second check beats a 20-minute re-render
Sampling a few frames and a short audio window catches most issues — no need to process the full file.
Free Tool
Media Quality Checker
Scan your file client-side. Instantly check aspect ratios, resolution, audio levels, and file size limits against TikTok, Instagram Reels, and YouTube guidelines before publishing.