# Encrypt Online

> Browser-based encryption, encoding, hashing, certificate, identity, and developer diagnostics with explicit compatibility limits and reproducible synthetic evidence.

Encrypt Online publishes interactive website routes, not a hosted tool-execution API. Transformations run in the browser page unless a tool explicitly discloses a direct remote request. Google Analytics and Google AdSense may load on ordinary pages, including tool pages; review the Privacy and Security pages before using sensitive material.

## Start Here

- [Tools Hub](https://encrypt-online.com/tools): Browse the complete human-facing tool catalog.
- [Guides](https://encrypt-online.com/guides): Read task-oriented explanations and troubleshooting workflows.
- [Machine-Readable Tool Catalog](https://encrypt-online.com/tools.json): Discover canonical tool routes, categories, algorithms, formats, related tools, and the browser-page execution model.
- [Citation Evidence Index](https://encrypt-online.com/evidence/index.json): Find versioned synthetic cases tied to production diagnostic source digests.

## Citation-Grade Diagnostic Records

- [OpenSSL AES Decrypt](https://encrypt-online.com/tools/openssl-aes-decrypt): Reconstruct an `openssl enc` recipe. [Evidence JSON](https://encrypt-online.com/evidence/openssl-aes-decrypt.json) covers valid PBKDF2 decryption, wrong-passphrase rejection, and malformed Base64.
- [Webhook Signature Verifier](https://encrypt-online.com/tools/webhook-signature-verify): Reproduce byte-exact HMAC checks. [Evidence JSON](https://encrypt-online.com/evidence/webhook-signature-verify.json) covers a match, signature mismatch, and malformed provider header.
- [Certificate and Key Matcher](https://encrypt-online.com/tools/certificate-key-matcher): Compare canonical SPKI public-key bytes. [Evidence JSON](https://encrypt-online.com/evidence/certificate-key-matcher.json) covers a match, different keys, and malformed PEM.
- [SAML Decoder and Diagnostics](https://encrypt-online.com/tools/saml-decoder): Inspect transport, routing, correlation, and timing evidence without claiming signature verification. [Evidence JSON](https://encrypt-online.com/evidence/saml-decoder.json) covers matching values, destination/recipient conflict, and malformed Base64.
- [JWK Thumbprint Calculator](https://encrypt-online.com/tools/jwk-thumbprint-calculator): Calculate RFC 7638 SHA-256 thumbprints. [Evidence JSON](https://encrypt-online.com/evidence/jwk-thumbprint-calculator.json) covers a fixed RSA vector, ignored metadata, and a missing required member.
- [OpenPGP Message Encrypt and Decrypt](https://encrypt-online.com/tools/openpgp-message): Inspect recipient keys and encrypt or decrypt armored text. [Evidence JSON](https://encrypt-online.com/evidence/openpgp-message.json) covers an encryption-ready public key, wrong block type, and truncated armor.
- [Evidence JSON Schema](https://encrypt-online.com/evidence/schema-v1.json): Validate the shared versioned record shape.

## High-Signal Guides

- [Decrypt Text with OpenSSL](https://encrypt-online.com/how-to-decrypt-text-with-openssl): Diagnose `bad decrypt` by reconstructing every original parameter.
- [Verify a Webhook Signature](https://encrypt-online.com/how-to-verify-a-webhook-signature): Preserve raw request bytes and separate HMAC matching from replay policy.
- [PGP Encryption Guide](https://encrypt-online.com/pgp-encryption-guide): Follow recipient/sender roles, fingerprint comparison, encryption, and decryption.
- [Inspect an X.509 Certificate](https://encrypt-online.com/how-to-inspect-an-x509-certificate-in-plain-english): Read certificate identity, key, validity, and extension fields without overclaiming trust.
- [JWT Decode vs. JWT Verify](https://encrypt-online.com/jwt-decode-vs-jwt-verify): Distinguish readable claims from cryptographic and policy verification.
- [Browser-Side Cryptography Explained](https://encrypt-online.com/browser-side-cryptography-explained): Understand what local transformation does and does not say about page network activity.

## Trust and Operating Boundaries

- [Security](https://encrypt-online.com/security): Review processing boundaries, direct-request exceptions, limitations, and vulnerability reporting.
- [Privacy](https://encrypt-online.com/privacy): Review Analytics, advertising, and data-handling disclosures.
- [About](https://encrypt-online.com/about): Read the editorial and product scope.
- [Product and Security Changelog](https://encrypt-online.com/changelog): Track substantive behavior, compatibility, and disclosure changes.
- [security.txt](https://encrypt-online.com/.well-known/security.txt): Use the published vulnerability-reporting contact and policy.

## Optional

- [Contact](https://encrypt-online.com/contact): Send corrections, compatibility findings, or tool suggestions. Do not send secrets, private keys, live tokens, or sensitive payloads.