Tone Analyzer - Online Detect Emotion in Text
Paste text and get a rough analysis of its emotional tone (happy, sad, angry, etc.) based on keyword matching. Local.
UD5 Toolkit
Analyze your text for subjective language, loaded terms, and hidden biases — instantly, privately, and free.
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Paste text and get a rough analysis of its emotional tone (happy, sad, angry, etc.) based on keyword matching. Local.
Analyze text for keyword frequency and density. Highlights over-optimized terms. Perfect for content writers and SEO editors. Entirely browser-based.
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Check if the current page can be loaded offline by examining the service worker cache. Developer tool for PWAs.
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Upload an image and instantly see its most dominant color as a hex swatch. Uses color quantization. Local.
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Drop a file to see its MIME type and the first few magic bytes (hex and ASCII). No upload, works instantly.
Calculate resistor values for transistor fixed bias or voltage divider configuration. Quick quiescent point analysis.
Upload a text file to detect its character encoding (UTF-8, ISO-8859-1, etc.) and BOM presence. Runs entirely in your browser.
Detect your current screen resolution, viewport dimensions, and device pixel ratio. Useful for responsive design testing. No data collection.