Processing rules 0
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Quick rules
Regular expression example
\d+[a-zA-Z]+\s+^\s*\s*$"[^"]*"\w+@\w+\.\w+https?://\S+\r?\n|\r\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\bText Formatter user guide
This tool batch-cleans text and supports two processing modes: line-by-line and full-text. You can delete, replace, or extract the prefix, suffix, or entire content of each line. Typical use cases: stripping wrapping characters from each line of JSON/CSV/log data, capturing content before or after a separator, extracting specific field values, and trimming fixed-length prefixes/suffixes.。
Core features
🔧 Concise matching pattern
- Line prefix processing：Match and process strings at the start of a line
- Line suffix processing：Match and process strings at the end of a line
- Full-line processing：Find and process matched content across the entire line.
- Full-text processing：Process the entire text before splitting into lines (such as line break replacement)）
- Regular expression：Supports complex pattern matching
- Dynamic rule list：Add multiple rules to process in order
⚙️ Smart processing options
- Remove：Remove matched strings
- Replace：Replace the matched string with the specified content.
- Keep only：Keep only the matched string and remove everything else (used for field extraction)）
- Split into lines：Replace matched strings with line breaks
- Remove this line：Delete entire lines containing the matched content (whole-line mode only)）
- Remove blank lines：Quickly remove all blank lines from the text (full-text mode only)）
- Live preview：See the result instantly after configuring rules
- Error message：Real-time detection of regular expression syntax errors
Use case examples
🔑 User ID extraction
Extract user ID information from log files for user behavior analysis.
[2024-01-15 10:23:45] INFO User login successful, USERID: 12345, SESSION: abc123Configuration:Full-line regular expression match
USERID: \d+，Choose processing method"Keep only"Output:
USERID: 12345
🐳 Docker Log cleanup
Extract key information from container logs, removing timestamps and container names.
[2024-01-15 10:23:45] INFO container-web-app-1 - Application startedConfiguration:Use a regex prefix to remove timestamps and whole-line matching to remove container names.
Output:
INFO Application started
📊 Nginx Access log processing
Extract status codes and response times from access logs.
192.168.1.1 - - [15/Jan/2024:10:24:16] "GET /api/users HTTP/1.1" 200 1024 45msConfiguration:Use regex matching to extract status codes and response times.
Output:
200 45ms
🔍 Kubernetes Pod Log aggregation
Clean up K8s log formatting for a consistent output format.
2024-01-15T10:23:45.123Z stdout F [ERROR] Database connection failedConfiguration:Use regex to remove timestamps and stream info while keeping the log content.
Output:
[ERROR] Database connection failed
🛠️ Batch process configuration files
Batch-edit parameter values in configuration files
database.host=localhost:3306Configuration:Suffix match
=localhost:3306，Replace with =prod-db:3306Output:
database.host=prod-db:3306
🔄 CSV Data cleaning
Clean quotes and special characters from CSV data.
"user_001","John Doe","[email protected]","Active"Configuration:Remove quotes from prefixes and suffixes, and replace commas with tabs across the whole line.
Output:
user_001 John Doe [email protected] Active
📋 API Response extraction
Extract specific field values from JSON logs.
{"timestamp":"2024-01-15T10:23:45Z","level":"INFO","message":"User login successful","userId":"12345"}Configuration:Use regex matching to extract the userId field value.
Output:
12345
🧹 Text cleanup and formatting
Quickly remove extra blank lines from a document to improve readability.
User data
User 1: John Smith
User 2: Jane Doe
Statistics completeConfiguration:Full-text mode, choose how to process"Remove blank lines"
Output:
User data
User 1: John Smith
User 2: Jane Doe
Statistics complete
🚫 Log filtering
Batch-delete log lines containing specific keywords, for example filtering out DEBUG-level logs.
[INFO] Application started
[DEBUG] Loading config file
[ERROR] Connection failed
[DEBUG] Retry attempt 1Configuration:Full-line mode, match content
DEBUG，Choose processing method"Remove this line"Output:
[INFO] Application started
[ERROR] Connection failed
How to use
Configure processing rules
Choose the matching mode for the prefix and suffix as needed, set the relevant parameters, and select a delete or replace operation.
Enter source text
Type or paste the text you want to process into the left editor, with file import supported.
View the result and export
View the live processing result on the right, then copy it or export it as a file once you’ve confirmed it’s correct.