Email Validator
Instantly check if an email address is valid with normalized output and clear error messages.
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10 件のツール
Security ツール
ブラウザ内で動作する無料オンライン security ツール。
Email Extractor
Extract unique email addresses from text, logs, and messy documents in one click.
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Password Generator
Free strong password generator and passphrase generator. Create 8, 12, 15, 16, 20, or 32 character random passwords, or memorable 3–7 word passphrases, with a live strength meter, entropy in bits, and crack-time estimate. Everything runs locally in your browser.
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htpasswd Generator
Generate .htpasswd credentials for Apache and Nginx Basic Auth. Create APR1-MD5 or SHA-1 entries, build multi-user files, and follow practical setup steps to protect folders with .htaccess or server config.
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Hash Generator
Compute MD5, SHA-1, or SHA-256 hashes of any text.
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JWT Encoder
Create JWT tokens with custom header and payload JSON, optional HMAC signing, and expiration controls for secure API testing.
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Hash Compare Tool
Compare two hashes with exact matching, timing-safe comparison, and similarity detection to catch subtle differences quickly.
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HMAC Generator
Generate HMAC signatures using SHA-256, SHA-384, or SHA-512 with an API testing mode for method, path, timestamp, and body signing.
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Credit Card Validator
Validate credit card numbers with the Luhn algorithm, detect the card brand, and compute the expected check digit — 100% client-side.
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Safa — Clean Premium Adblocker
Safa is a clean, premium ad blocker for Chrome that blocks ads, trackers, and intrusive overlays — with no accounts, no sync, and no telemetry. Free, fast, and Manifest V3.
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