Online APK Certificate Extractor - X509 Signing Certificate Free

🔒 APK X509 Certificate Info

Extract and view X509 signing certificate information from APK files

✓ Issuer Details ✓ Validity Check ✓ SHA256 Fingerprint ✓ Public Key Info
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Drop your APK file here to analyze certificate
Supports APK files up to 100MB
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About APK Certificates

Every Android APK file must be digitally signed before installation:

🔒 X509 Certificates

APKs use X.509 certificates to prove the identity of the app developer and ensure file integrity

🗝 Fingerprints

SHA-256 fingerprints uniquely identify certificates and are used for API key restrictions

🕐 Validity Period

Certificates have a validity period. Expired certificates prevent app updates

🔑 Signature Schemes

Android supports v1 (JAR), v2, v3, and v4 signature schemes for different security levels

Encoding and Data Utilities

Encode, decode, measure sizes, and transform common formats.

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