Make an OBS
test pattern.
Download a PNG with color blocks, gray steps, a grid and a circle. Add it to a test scene in OBS, record a short sample, then check for cropped edges, stretched shapes and lost detail.
JavaScript is needed to change the size and download a PNG. The reference preview and OBS setup instructions are available below.
Made on this device. No image upload or account. The preview fits your screen; the PNG uses the size you select.
Use the PNG in an OBS test scene.
- Choose a PNG size that matches the base canvas you want to check. For a vertical scene, choose 1080 × 1920.
- Download the PNG. In a separate OBS test scene, add an Image source and choose the file. Keep your usual scene available.
- Fit the image to your canvas without stretching its proportions. Check that the white border is visible and the circle still looks round.
- Record a short sample using the output settings you want to check. Play the file back and compare the border, gray steps and grid with the reference. A smaller output can soften fine detail.
- Then record your real scene, including movement and speech. Watch and listen to it; a static pattern does not reproduce a busy game or microphone problem.
This is a static RGB reference, not a calibrated broadcast chart. It does not measure color accuracy, HDR, frame rate, motion, audio or your connection to a streaming server. No automatic pass or quality score is produced.
Which test answers your question?
- Cropped or stretched picture: compare the PNG with your recorded output and inspect the source transform.
- Upload speed and a starting bitrate: run the Speed Test.
- Missing microphone or game audio: make a listening test using the OBS Audio Routing plan.
- Dropped frames or lag: stop the session, then use the OBS Log Analyzer to read the percentages.
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Reviewed October 28, 2026. OBS supports PNG files in its Image source; see the OBS Sources Guide for adding a source. This independent tool is not an OBS Project product.