Base64 Decoder
Decode Base64 encoded data back to text
Base64 Input
Decoded Text
Decoded text will appear here
Enter Base64 data in the input area to get started
Reverse Base64 Encoding to Recover Original Data
Base64 decoding reverses the encoding process, converting ASCII text back to its original binary or text format. This is essential when you receive Base64-encoded data from APIs, email attachments, or configuration files and need to access the actual content.
For telecom professionals working with network device responses, encrypted certificates, firmware downloads, or configuration backups, Base64 decoding reveals the underlying data structure, enabling proper analysis, validation, and system integration.
🔍 Data recovery:
Base64 decoding reveals the original data hidden behind encoded text - essential for debugging and analysis!
Base64 Encoded Input
Network API response:
ewogICJkZXZpY2VJZCI6ICJOVFdfUk9VVEVSX0EwMDEiLAogICJzdGF0dXMiOiAiYWN0aXZlIiwKICAiaXBBZGRyZXNzIjogIjE5Mi4xNjguMS4xIiwKICAibGFzdFNlZW4iOiAiMjAyNC0wMS0xNVQxNDozMDowMFoiLAogICJmaXJtd2FyZVZlcnNpb24iOiAidjIuMS4zIiwKICAiY29uZmlnSGFzaCI6ICJhYmMxMjNkZWY0NTYiCn0=
Encoded data from API
Decoded Output
Readable JSON data:
{
"deviceId": "NTW_ROUTER_A001",
"status": "active",
"ipAddress": "192.168.1.1",
"lastSeen": "2024-01-15T14:30:00Z",
"firmwareVersion": "v2.1.3",
"configHash": "abc123def456"
}Now you can work with the data! ✨
Real-World Example: SSL Certificate Decoding
Base64 Certificate Data
Received from network device API:
LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUNuVENDQVlVQ0ZHcXVuOGhxVGt xeGVYWGdCVjVZV3NQMXJBOGFNQTBHQ1NxR1NJYjNEUUVCQ3dVQU1CMHgKR3pBWkJnTlZ CQU1NRWs1bGRIZHZjbXNnUkdWMmFXTmxJRU5sY25ScFptbGpZWFJsQ0FBZUdRQXhNREV OTVJBTQpNREF4TVRBMU1EQXdNREF3V2pBZE1Sc3dHUVlEVlFRRERCQk9aWFIzYjNKclky OHdnZ0VpTUEwR0NTcUdTSWIzCkRRRUJBUVVBQTRJQkR3QXdnZ0VLQW9JQkFRREkwcnN 5YWF6dUVpMHRCTzJGVlFEYzNnNGRhTlhPWXZJcWhCbUkKcVBPc0NtQjNyZWdLRHNzRnJx T3hqRkdRZVRoSUJuVWdRY2N1dUlxTHpqUzFBQTRJQkR3QXdnZ0VLQW9JQkFRREkwcnN CZVlLWnhXMGJGcVVPTjI1UGxBcVpWbkRGbW9OUkNneEtPTkdwZU9VdVVmTHJaZTVOQW YrUXBrUzV1WjhLSUdmUGZzUGFhRDVSRUc=
Decoded Certificate
Readable PEM format:
-----BEGIN CERTIFICATE----- MIICnTCCAYUCFGqun8hqTkqxeXXgBV5YWsP1rA8aMA0GCSqGSIb3DQEBCwUAMB0x GzAZBgNVBAMMEk5ldHdvcmsgRGV2aWNlIENlcnRpZmljYXRlAAeGQAxMDENMRAM MDAxMTA1MDAwMDAwWjAdMRswGQYDVQQDDBBOZXR3b3JrIERldmljZSBDZXJ0aWZp Y2F0ZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAQDI0rsyaazuEi0t BO2FVQD3g4DaNXOYvIqhBmIqPOsCmB3regKDssFrqOxjFGQeThIBnUgQccuuIqLz jS1AA4IBDwAwggEKAoIBAQDI0rsBYKZxW0bFqUON25PlAqZVnDFmoNRCgxKONGpe OUuUfLrZe5NAf+Qpks5uZ8KIGmPfsPaaC5REG= -----END CERTIFICATE-----
Now you can inspect certificate details, validate expiration dates, and verify the certificate chain!
When Base64 Decoding Unlocks Solutions
API Response Analysis
Network management APIs often return Base64-encoded configuration data, logs, or binary files. Decoding reveals the actual content for analysis and troubleshooting.
Email Attachment Recovery
Email attachments are transmitted as Base64. When debugging email systems or recovering corrupted attachments, decoding reveals the original file content.
Configuration Debugging
Device configurations stored as Base64 in databases or transmitted via APIs need decoding to understand the actual settings and troubleshoot issues.
Data URI Processing
Web applications use Base64 data URIs for embedded images and files. Decoding extracts the original file for editing, analysis, or conversion.
⚠️ Validation tip:
Always validate decoded data! Invalid Base64 can produce garbage output - check for expected formats and content.