How to combine videos with different resolutions without cropping
Join landscape and portrait clips without cutting off their edges. Learn how the first clip sets ScreenLab’s output size and when black bars appear.
Read guideScreenLab guides
Make the most of your media.
Simple, practical guides for working with images and video. Find the right format, make smaller files, and share your work with confidence.
Explore all free tools
How to compress an image under 200 KB without making it unreadable
Reduce a JPG, PNG or WebP toward a 200 KB upload limit. Adjust quality and dimensions, protect readable details, and check the actual downloaded size.
Read guide
How to extract audio from MP4: MP3, WAV or M4A?
Extract audio from an MP4 in your browser. Choose MP3, WAV or M4A, understand quality and channel settings, and check the downloaded audio.
Read guide
How to compress a video for email without making text unreadable
Compress a screen recording for email with ScreenLab. Compare quality, resolution and file size while keeping interface text readable.
Read guide
MOV to MP4: when you can convert without losing quality
Learn when MOV-to-MP4 conversion can preserve quality, when H.264 re-encoding is needed, and how to check the result in ScreenLab.
Read guide
How to resize an image without stretching it
Resize images without stretching them. Learn longest-edge presets, aspect ratios, padding and file-size checks with ScreenLab’s free tools.
Read guide
How to convert HEIC to JPG without uploading your photos
Convert HEIC photos to JPG in your browser, choose quality and dimensions, and download individual files or a ZIP with ScreenLab.
Read guide
How to make a GIF from a screen recording
Turn a short screen recording into a looping GIF with trim, frame-rate and width controls. Learn ScreenLab’s 600-frame limit and practical settings.
Read guide
PNG, JPG or WebP: which should you use for screenshots?
Choose a screenshot format based on text clarity, transparency, file size and compatibility. Compare your own exports with ScreenLab’s Image Converter.
Read guide