Design tools
10 browser-based design and accessibility tools — check color contrast, simulate color blindness, preview font pairs, generate CSS code, optimize SVG, create favicons, resize icons, and more. No signup, no cloud, nothing leaves your device.
Design Tools
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Color Blind Simulator
Upload an image and see how it appears to people with deuteranopia, protanopia, or tritanopia — 100% client-side.
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Color Contrast Checker
Check WCAG 2.1 contrast ratios between foreground and background colors — instant AA/AAA pass/fail.
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Font Pair Previewer
Pick heading and body fonts from Google Fonts and preview them together with live sample text.
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CSS Shadow Generator
Build box-shadow and text-shadow CSS visually with live sliders — copy the code in one click.
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CSS Clip Path Generator
Create CSS clip-path polygon shapes with an interactive point editor and instant code output.
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SVG Optimizer
Paste or upload SVG files and remove metadata, comments, and whitespace to shrink file size.
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Emoji Favicon Generator
Turn any emoji into favicon-ready PNG files at 16, 32, 48, 64, 128, and 192px — download instantly.
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Icon Resizer
Upload a PNG or SVG icon and download it at multiple sizes — ideal for app icons and favicons.
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Image to Icon Set
Convert any image to a full iOS and Android app icon set — all standard sizes, client-side.
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ASCII Art Banner
Convert text into ASCII art banners with multiple font styles — copy and paste into code or READMEs.
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Why browser-only design tools?
Design files, brand assets, and client icons are valuable intellectual property. Uploading them to a third-party service creates unnecessary risk. Every tool on this page runs entirely in your browser — paste freely, audit safely, share nothing.
From accessibility checks (color blindness simulation, WCAG contrast ratios) to code generation (CSS shadows, clip paths) to asset optimization (SVG minification, emoji favicons, icon resizing), every tool is built for the moments designers and developers need quick, private answers.
Frequently Asked Questions
- Do these tools upload my files anywhere?
- No. Every design tool on this page runs entirely in your browser. Your images, SVG files, and color choices never leave your device — not even temporarily.
- What is WCAG color contrast?
- WCAG (Web Content Accessibility Guidelines) defines contrast ratio thresholds for readable text. AA level requires a 4.5:1 ratio for normal text and 3:1 for large text. AAA level requires 7:1 and 4.5:1 respectively.
- Can I use generated favicons commercially?
- Yes. The Emoji Favicon Generator renders standard system emoji onto a canvas in your browser. The resulting PNG files are yours to use freely.