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Mail

▸Encoding & Conversion

Encoding Inspector Data Encoding Analysis
Encode / Decode Text Encoding Conversion
MIME Encoded-Word Mail Header Encoding Conversion
Transfer Encoding Mail Body Transfer Encoding Conversion
UTF-7 IMAP Mailbox Name Conversion

▸Headers & MIME

Mail Header Analyzer Mail Header Analysis
MIME Inspector MIME Structure Analysis
MIME Builder MIME Message Creation

▸SMTP

SMTP AUTH Builder SMTP Authentication Commands
SMTP Connection SMTP Connection Test
SMTP Session SMTP Send Session
SMTP Status SMTP reply code & message analysis (being improved)

▸IMAP

IMAP Connection IMAP Connection Test
IMAP Command Builder IMAP Commands

▸Authentication

SPF Inspector SPF Policy Inspection
DKIM Inspector DKIM Record Inspection
DMARC Inspector DMARC Policy Inspection

▸Diagnostics

Mail DNS Command Builder Mail DNS Lookup Commands
OpenSSL Builder Mail TLS Test Commands
Mail Packet Capture Mail traffic capture & basic analysis

Linux

▸Troubleshooting

Linux Troubleshooter Step-by-step diagnosis by symptom

▸Processes & Resources

Process Inspector Inspect processes, CPU and memory
Disk Usage Inspect disk, folder and large-file usage

▸Files & Search

Find Builder Find files and folders by condition
Grep Builder Search file contents and text

▸Permissions & Ownership

Permission Calculator Convert rwx and numeric permissions
chmod Builder Build file and folder permission changes
chown Builder Change user and group ownership

▸Logs

Log Inspector Search, filter and follow logs

▸Archives

Archive Builder Create, extract and inspect archives

▸SSH & File Transfer

SSH Builder Build an SSH connection command
SCP Builder Upload and download files
SFTP Guide Connect and transfer files interactively
SSH Key Builder Generate an SSH key pair locally

▸Schedules

Cron Builder Build and explain cron schedules

Encoding & Conversion

Encode / Decode

Text Encoding Conversion

Convert data to or from Base64, Hex, URL Encoding and other formats.

Mode

Paste text or encoded data...

Decode from

Encode as

Advanced

Change UTF-8 only when the receiving system requires a different charset.

Charset

Processed locally in your browser.

Unsure of the charset? Analyze with Encoding Inspector →

Preview truncated; Copy copies the complete output.

View raw bytes

View byte values to troubleshoot binary data or compare a protocol capture.

Advanced

Showing the first 100 invalid sequences per charset. Offsets are zero-based.

No account. No upload. No database.

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