Encoding & Crypto for Finance
11 encoding & crypto tools hand-picked for Finance.
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Credit Card Number Deduplicator
Find duplicates and keep one clean copy of credit card numbers from pasted text or uploaded local files.
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Credit Card Number Extractor
Extract, dedupe, and export credit card numbers from pasted text or uploaded local files.
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Credit Card Number List Converter
Convert credit card numbers from pasted text or uploaded local files.
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Credit Card Number List Validator
Validate and explain issues in credit card numbers from pasted text or uploaded local files.
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Credit Card Number Normalizer
Normalize, sort, and prepare credit card numbers from pasted text or uploaded local files.
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Duplicate File Finder
Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report.
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File Checksum Compare
Paste an expected checksum, upload a file, and verify SHA digest matches locally before installing or sharing.
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File Hash Calculator
Compute SHA-1, SHA-256, SHA-384, or SHA-512 hashes for uploaded files entirely in the browser.
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Local File Workbench
Triage a mixed batch locally for file type mismatches, duplicate candidates, metadata privacy, archive risks, and next-step tools.
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Password Generator
Generate strong, cryptographically random passwords and passphrases — entirely in your browser.
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ZIP Manifest Inspector
Read a ZIP central directory locally and flag traversal paths, encryption, duplicate names, and risky ratios.