Simple tools that run instantly in your browser.
No login. No tracking. Just fast utilities.
Featured Tools
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Bleed & Safe Margin Calculator
Calculate bleed, trim, and safe margins for print-ready layouts.
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Byte & Character Counter
Count characters, words, lines, and UTF-8 bytes instantly in your browser without uploads.
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Color Contrast Checker
Check text and background contrast ratio with simple WCAG pass hints.
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Image Compressor
Compress images in-browser with quality controls and size comparison.
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JSON Formatter & Validator
Format, validate, and minify JSON with helpful parse errors.
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Image Resizer
Resize images with presets and optional ratio lock, then export quickly.
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Timestamp Converter
Convert Unix timestamps to dates and back with UTC and KST views.
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QR Code Generator
Generate QR codes for URL, text, and Wi-Fi details and download PNG.
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px↔mm↔pt Converter (DPI)
Convert px, mm, and pt with DPI presets and custom print density.
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WebP Converter
Convert JPG or PNG images to WebP client-side with quality control.
Latest Guides
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A4 vs Letter: Size Differences That Matter
Understand A4 and Letter size differences and avoid scaling issues in print workflows.
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Aspect Ratio Explained for Images and Video
Keep media proportions consistent across social cards, banners, and responsive layouts.
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Best Image Sizes for Social Media
Plan social image dimensions to reduce automatic cropping and preserve composition.
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Bleed, Trim, and Safe Area Basics
Set up print documents correctly with bleed and safe area to avoid cutting content.
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Writing for Character Limits
Write concise messages that fit strict character limits without losing key meaning.
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Color Formats Explained
A practical overview of color formats used in design tools and frontend development.
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Common Image Aspect Ratios
A practical list of common aspect ratios and where each one is typically used.
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DPI for Print: 72 vs 150 vs 300
Choose practical DPI settings for screen previews, proofing, and final print production files.