Colour Contrast Checker
Colour contrast analyser for background and foreground pairs. Live WCAG ratio, pass or fail grades, hex RGB and HSL controls, and text preview.
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Discover UI design tools for every workflow
A curated directory of UI/UX tools—SVG generators, color pickers, image editors, charts, icons, mockups, and design games—hosted on Uwarp or linked with clear source attribution.
502+ tools · 296 free hosted · no signup · 14 categories
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Color Tools
Colour Contrast Checker
Colour contrast analyser for background and foreground pairs. Live WCAG ratio, pass or fail grades, hex RGB and HSL controls, and text preview.
Featured tools
Hosted workflow apps you can open free in the browser—color, SVG, drawing, and image tools.
New & notable
A short list of recently updated tools—open the directory for the full catalog.
Free runs on Uwarp · Embed third-party in-page · Curated external product
- Free
Merge Videos Online
Audio Tools
Merge videos online free. Free video merger — combine multiple video clips, stitch MP4 files, and append videos into one MP4 in your browser, no server upload.
- Free
MP4 to WMV Converter
Audio Tools
Convert MP4 to WMV online free. Free MP4 to WMV converter — turn MP4 into Windows Media Video (.wmv) with adjustable bitrate, no server upload.
- Free
MKV to MOV Converter
Audio Tools
Convert MKV to MOV online free. Free MKV to QuickTime converter — turn Matroska (.mkv) into QuickTime .mov with adjustable quality, no server upload.
- Free
VOB to MP4 Converter
Audio Tools
Convert VOB to MP4 online free. Free VOB to MP4 converter — turn DVD .vob files into H.264 MP4 with adjustable quality, no server upload.
- Free
MP4 to M4A Converter
Audio Tools
Convert MP4 to M4A online free. Free MP4 to M4A converter — extract video audio to AAC .m4a with selectable bitrate, no server upload.
- Free
MOV to WAV Converter
Audio Tools
Convert MOV to WAV online free. Turn QuickTime .mov into WAV / Wave PCM audio — extract audio from MOV in your browser, no server upload.
- Free
M4B to MP3 Converter
Audio Tools
Convert M4B to MP3 online free. Free M4B to MP3 converter — turn audiobook .m4b into MP3 with selectable bitrate, no server upload.
- Free
MP3 to FLAC Converter
Audio Tools
Convert MP3 to FLAC online free. Free MP3 to FLAC converter — turn MP3 into FLAC for archives and DAWs in your browser, no server upload.
Must-know about this directory
Free, no signup
Open any tool and start working—no account wall on hosted apps or listings.
Hosted on Uwarp
First-party tools with live preview, export, and no third-party iframe when possible.
Curated embeds
Trusted third-party tools with clear source attribution before you upload files.
Organized by task
Categories follow real workflows: color, SVG, image editing, mockups, games, and more.
Still browsing? Let us pick one.
Jump into a random free hosted tool, or open the full directory when you know what you need.
Looking for third-party picks? Browse curated products