Short answer: blur comes from one of seven mismatches, recording below native resolution, display-scaling confusion, bitrate starvation on fine text, upscaling in the editor, zooming past your pixel budget, GIF's format limits, or a platform re-encode. Identify which one you're hitting and the fix is usually a single setting.
The 7 causes, in order of likelihood
- Recording below native resolution. A 2560×1440 display captured at 1920×1080 throws away a third of your pixels before you start. Fix: capture at native size.
- Windows display scaling. At 125%/150% scaling, apps can render at one size and capture at another. Fix: record on a 100%-scaled display when possible, or use a recorder that handles physical pixels correctly.
- Bitrate starvation. Screen content is mostly sharp edges and small text, the hardest case for video encoders. Symptoms: text shimmer, smudged terminal fonts. Fix: raise the quality/bitrate tier; text-heavy demos deserve the highest setting.
- Export smaller than the recording. Downscaling 1440p→720p averages pixels; 11px UI text does not survive. Fix: export at the same class you recorded, or crop instead of shrinking.
- Zooming beyond the pixel budget. A 2× zoom shows a quarter of your pixels full-frame. From a 1080p capture that's ~960×540 stretched, soft. Fix: record at 1440p/4K if you'll zoom hard; a 4K master gives zooms room.
- GIF limits. GIF is 256 colours per frame with dithering, it will never be video-sharp. Fix: use GIF for short UI loops, MP4 for anything with gradients or long text reads.
- Platform re-encodes. YouTube, Slack and Teams recompress uploads. Fix: feed them the highest-quality master; never upload an already-compressed small file.
The 30-second diagnosis
Pause on a frame with small text. Sharp in the editor but blurry after export → causes 3–4. Blurry in the editor too → causes 1–2. Only blurry after upload → cause 7. Only blurry when zoomed → cause 5.
Defaults that avoid all seven
Capture native at 60fps, edit non-destructively, export MP4 at the highest quality your plan allows (Girato Free is 1080p/60; Pro unlocks 1440p/4K + Max bitrate) and let platforms downscale from strength.
Frequently asked questions
Why is my screen recording blurry when the screen looked sharp?
Why does it get blurrier after uploading to YouTube or Slack?
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