Find and replace a string at a certain position
This free online tool lets you easily find and replace text strings at specific line positions in your files. You can upload a TXT file or paste text directly, then choose whether the replacement should happen at the beginning of a line, at the end, or at a custom character position. The tool supports UTF-8 and ISO-8859-1 encoding, making it suitable for different text formats. With just a few clicks, you can process large amounts of text, copy the results, or download them as a TXT file. Perfect for developers, writers, and data professionals who need precise text editing.
Find and Replace String at Position - Explanation & Examples
The Find and Replace String at Position tool allows you to replace a specific search string only at a defined location within each line. You can choose to replace the search word at the beginning of a line, at the end of a line, or at an exact character position. This makes the tool ideal for structured, line-based text editing.
⭐ What Does This Tool Do?
This tool lets you:
- Replace a specific search word at the start of a line
- Replace a specific search word at the end of a line
- Replace a search word at an exact character position
- Process multiple lines at once
- Ensure replacements only happen at the selected location
⭐ How It Works
- Paste or upload your text.
- Enter the search word you want to replace.
- Select where the search word must appear:
- Beginning of the line
- End of the line
- Specific character position
- Enter the replacement text.
- The tool replaces the word only when it matches the selected position.
⭐ Example: Replace at the Beginning of a Line
Original Text:
ERROR: File not found
ERROR: Access denied
INFO: Process startedSearch word: ERROR
Replace with: WARN
Position: Beginning of line
Result:
WARN: File not found
WARN: Access denied
INFO: Process started⭐ Example: Replace at a Specific Character Position
Original Text:
ID-12345-XYZ
ID-67890-XYZSearch word: 12345
Position: Character position 4
Replace with: 99999
Result:
ID-99999-XYZ
ID-67890-XYZ⭐ Why Use This Tool?
- Targeted replacements: Avoid unintended changes elsewhere in the text
- Perfect for structured data: Works well with IDs, logs, and formatted files
- Line-based control: Each line is processed individually
- Fast and simple: No scripting or regex required
⭐ Common Use Cases
- Updating prefixes or suffixes in text files
- Replacing values in fixed-position records
- Cleaning imported or exported data
- Editing log files or system outputs
⭐ Tips for Best Results
- Make sure the search word exactly matches the text at the chosen position.
- Character positions usually start counting from 1.
- Test your settings on a few lines before processing large datasets.
⭐ Try the Tool
Select the exact position, define your search word, and replace it with confidence. The Find and Replace String at Position tool gives you precise control over where changes happen.