KOLFAT

FREE • LOCAL • PRIVATE

Security & Text Analysis

Generate secure passwords, inspect data, analyze text, and review suspicious patterns. Twelve focused utilities in one collection.

12 Security & Text Analysis Tools

FREE • ON-DEVICE

Secure Password Generator

Create cryptographically random passwords with optional character groups.

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FREE • ON-DEVICE

Secure Passphrase Generator

Generate random multiword passphrases using an offline word-combination list.

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FREE • ON-DEVICE

Password Strength Estimator

Inspect password length and obvious weak patterns without sending it away.

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FREE • ON-DEVICE

JWT Decoder & Inspector

Decode JWT claims and timestamps locally. Never trust decoded claims as verified.

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FREE • ON-DEVICE

Text Hash Generator

Calculate SHA-256 or SHA-512 hashes of UTF-8 text in your browser.

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FREE • ON-DEVICE

Secret Leak Scanner

Detect common secret patterns in pasted text without uploading it.

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FREE • ON-DEVICE

Sensitive Text Redactor

Replace selected emails, IPv4 addresses and phone-like strings with placeholders.

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FREE • ON-DEVICE

Text & Code Diff Checker

Compare two versions of text and show added and removed lines.

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FREE • ON-DEVICE

Unicode & Homoglyph Inspector

Inspect mixed scripts, invisible characters and selected lookalike Unicode symbols.

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FREE • ON-DEVICE

Punycode / IDN Converter

Convert internationalized domain names to ASCII or decode Punycode labels.

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FREE • ON-DEVICE

URL Safety Inspector

Review URL structure for warning signs without visiting the destination.

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FREE • ON-DEVICE

Text Hex & UTF-8 Inspector

View UTF-8 bytes, hexadecimal values and Unicode code points.

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