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View allNSFW Image Content Detector
jsonAI Tools
AI-powered image content safety detector using NSFWJS to classify potentially inappropriate content with fallback analysis, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.
nsfw-image-detectorEm-dash & Typographic Purifier
htmlText Processing
Convert AI-typical plain ASCII into proper typography: -- and --- become en/em dashes, straight quotes become curly/smart quotes (locale-aware), ... becomes a single ellipsis …, spaced dashes are tightened, and repeated spaces collapse — while fenced ``` code blocks and `inline` code are left untouched.
em-dash-and-typographic-purifierEmail Signature HTML Builder
htmlDesign
Generate a clean, copy-paste HTML email signature that renders correctly in Gmail, Outlook, and Apple Mail — with avatar/logo, social icons (auto-detected from your links), accent color, light/dark/auto theme, and a table-based email-safe layout using inline styles. Copy the raw HTML and paste straight into your mail client.
email-signature-html-builderEAN-8 Barcode Validator
textValidation
Validate 8-digit EAN-8 / GTIN-8 product barcodes with check-digit verification, GS1 country prefix and packaging breakdown.
ean8-validatorFLAC to ALAC Converter
fileMedia
Convert FLAC audio files to ALAC (Apple Lossless) in an M4A container while preserving lossless quality and metadata when available
flac-to-alacHMAC Generator & Verifier
htmlSecurity
Compute an HMAC message-authentication signature over a message + shared secret using SHA-1/SHA-2/SHA-3/BLAKE2, or verify an incoming signature against the secret — with webhook presets for Stripe / Slack / GitHub and constant-time comparison
hmac-generator-verifierImage Palette to Design Tokens
htmlDesign
Extract a dominant color palette from an image (k-means clustering), then export it as CSS variables, SCSS variables, a Tailwind config, or JSON design tokens — with named colors and an auto-generated shade scale for each
image-to-design-tokensISIN Validator
textValidation
Validate International Securities Identification Numbers (ISO 6166 ISIN) with Luhn check-digit verification, country/issuer prefix and NSIN breakdown.
isin-validatorLuhn Checksum Calculator
textValidation
Validate or generate numbers using the Luhn algorithm (mod-10). Works for credit cards, IMEI, IMEISV, SIN, NPI and any custom Luhn-based identifier.
luhn-checksum