Encoding & Crypto for Legal

14 encoding & crypto tools hand-picked for Legal.

Credit Card Number Deduplicator

Find duplicates and keep one clean copy of credit card numbers from pasted text or uploaded local files.
Credit Card Number Extractor

Extract, dedupe, and export credit card numbers from pasted text or uploaded local files.
Credit Card Number List Converter

Convert credit card numbers from pasted text or uploaded local files.
Credit Card Number List Validator

Validate and explain issues in credit card numbers from pasted text or uploaded local files.
Credit Card Number Normalizer

Normalize, sort, and prepare credit card numbers from pasted text or uploaded local files.
CSP Policy Auditor

Inspect Content-Security-Policy directives for unsafe sources, missing fallbacks, framing gaps, object-src, base-uri, and reporting coverage.
Duplicate File Finder

Upload a batch and find exact duplicate files by SHA hash locally, with a Markdown cleanup report.
ENV Secret Scanner

Scan .env files, config snippets, and CI logs locally for likely API keys, tokens, private keys, JWTs, and database URLs.
File Checksum Compare

Paste an expected checksum, upload a file, and verify SHA digest matches locally before installing or sharing.
File Hash Calculator

Compute SHA-1, SHA-256, SHA-384, or SHA-512 hashes for uploaded files entirely in the browser.
HTTP Security Header Auditor

Audit raw response headers for HSTS, CSP, cookie flags, MIME sniffing, clickjacking, referrer, and permissions policy gaps.
Local File Workbench

Triage a mixed batch locally for file type mismatches, duplicate candidates, metadata privacy, archive risks, and next-step tools.
Package Lock Dependency Auditor

Inspect package-lock.json, pnpm-lock.yaml, or yarn.lock for duplicate versions, risky sources, prereleases, and missing integrity.
ZIP Manifest Inspector

Read a ZIP central directory locally and flag traversal paths, encryption, duplicate names, and risky ratios.