How to Use This Tool
Enter Your Text
Type directly into the input area, paste content with Ctrl+V, or upload a .txt file by clicking Upload or dragging the file onto the input.
Set Prefix and Suffix
Type the text to add before each line in the Prefix field and the text to add after each line in the Suffix field. Leave either blank to skip it.
See Results Instantly
The output updates live as you type in any field. Toggle Skip empty lines on or off to control whether blank lines get prefix and suffix added.
Copy or Download
Click Copy to put the result on your clipboard, Download to save it as a .txt file, or Clear All to start over.
Frequently Asked Questions
Is this tool really free?
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Yes, completely free with no limits, no sign-up, and no watermarks. Everything runs in your browser.
Is my text uploaded to a server?
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No. Your text never leaves your device. All processing happens directly in your browser.
Can I use prefix and suffix at the same time?
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Yes. Both fields work independently and together. Each line gets the prefix added to the front and the suffix added to the end.
What does Skip empty lines do?
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When on (the default), blank lines are left untouched. Turn it off if you want prefix and suffix added to every line, including empty ones.
Can I upload a file instead of pasting?
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Yes. Click Upload to pick a .txt file, or drag and drop a text file directly onto the input area.
Does it preserve my original line breaks?
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Yes. Every line break in your input is kept exactly as-is. Only the prefix and suffix text is added to each line.
Will my text be saved if I refresh?
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Yes. Your input is saved on your device automatically. Click Clear All to wipe everything.
Can I use special characters in the prefix or suffix?
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Yes. Spaces, symbols, HTML tags, and any other characters are supported in both fields.
How do I wrap lines with HTML tags?
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Set the prefix to an opening tag like <li> and the suffix to the closing tag </li>. Every line will be wrapped.
Can I add just a prefix or just a suffix?
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Yes. Leave either field blank and only the other will be applied.
What Is Add Prefix & Suffix?
Add Prefix & Suffix is a free tool that adds custom text to the beginning and end of every line in your input. Whether you need to prepend bullet points, wrap lines with HTML tags, append semicolons, or add quote marks for database queries, this tool handles it instantly. Everything runs in your browser - no text is sent to any server.
The output updates live as you type in any field. The Skip empty lines option keeps blank lines clean by default, and you can use prefix and suffix independently or together for maximum flexibility.
Features Explained
Independent Prefix and Suffix Fields
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Enter text in the Prefix field to add it before each line, the Suffix field to add it after, or both. Spaces, symbols, and special characters are all supported.
Skip Empty Lines Option
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When on (the default), blank lines are left untouched. Turn it off to add prefix and suffix to every line, including empty ones.
Live Real-Time Output
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The output updates instantly as you type in the input, prefix, or suffix fields. No button press needed.
File Upload and Drag-Drop
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Click Upload to pick a .txt file, or drag and drop a text file directly onto the input area. The file content replaces the current input.
Copy to Clipboard
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Click Copy to put the entire processed output on your clipboard, ready to paste anywhere.
Download as Text File
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Click Download to save the result as a .txt file named prefixed-text.txt.
Preserves Line Structure
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Every line break in your input is kept exactly as-is. Only the prefix and suffix text is added - nothing else changes.
Works with Any Characters
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Both fields accept any text including HTML tags, code syntax, symbols, emoji, and multi-character strings.
Automatic Persistence
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Your input text is saved on your device automatically between sessions. Refresh the page and your text is still there.
100% Browser-Based Processing
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All processing happens directly in your browser. Your text is never uploaded to any server.
Who Is This Tool For?
Developers
Wrap lines with HTML tags, add comment markers, prepend indentation, or append semicolons to code lines in bulk.
Data Analysts
Add quote marks, delimiters, or query syntax around data values for database imports and query building.
System Administrators
Prepend timestamps, log levels, or hostnames to log entries. Append tags or metadata to configuration lines.
Technical Writers
Add consistent formatting prefixes to documentation lines, command examples, or reference entries.
Writers
Prepend bullet points, quote markers, or numbering to lists and paragraphs for consistent formatting.
Editors
Add annotation markers or revision prefixes to manuscript lines during the review process.
Marketers
Add hashtags, mentions, or tracking parameters to lists of keywords and social media content.
SEO Specialists
Prepend or append tags to keyword lists for bulk upload to SEO tools and campaign managers.
Students
Format study notes with prefixes like Q: and A:, or add numbering to flashcard lines.
Teachers
Add numbering, bullet points, or labels to quiz questions and answer lists.
Project Managers
Prepend status markers or priority labels to task lists and project line items.
Customer Support
Add ticket prefixes, response templates, or signature lines to bulk reply drafts.
Translators
Add language labels or reference markers to source and translated text lines.
Bloggers
Wrap content lines in HTML list items or add markdown formatting to draft lists.
Email Marketers
Add tracking tags or personalization tokens to email template lines.
QA Engineers
Prepend test case IDs or result markers to test step descriptions.
Accountants
Add currency symbols, account codes, or category labels to financial line items.
Researchers
Prepend citation numbers or source codes to reference list entries.
Designers
Add CSS class prefixes or attribute suffixes to lists of style names.
HR Professionals
Add department codes or status labels to employee list entries.
Lawyers
Prepend exhibit numbers or clause references to document lines.
Freelancers
Add client codes, project tags, or invoice prefixes to line-item lists.
Event Planners
Add venue codes, time slots, or category labels to event schedule lines.
Anyone
Add any text before or after every line for formatting, labeling, or wrapping - no sign-up needed.
Common Prefix/Suffix Examples
| Prefix | Suffix | Example Output | Use Case |
|---|---|---|---|
| "- " | "" | - First line | Markdown bullet list |
| "<li>" | "</li>" | <li>First line</li> | HTML list items |
| "// " | "" | // First line | Comment out code |
| "'" | "'," | 'First line', | SQL/JS string array |
| " " | "" | First line | Add indentation |
| "" | ";" | First line; | Append semicolons |
Tips for Best Results
Wrap lines with HTML tags
Set prefix to an opening tag like <li> and suffix to the closing tag </li> to wrap every line in HTML elements.
Build SQL IN clauses
Set prefix to a single quote and suffix to a quote-comma to format each line. Remove the trailing comma from the last line.
Comment out code blocks
Set the prefix to // with a trailing space to comment out every line in JavaScript, C, or similar languages.
Keep Skip empty lines on
Leave it enabled to avoid adding prefixes and suffixes to blank lines, which keeps your output cleaner.
Add CSV quoting
Set both prefix and suffix to a double quote to wrap each line in quotes for CSV formatting.
Combine with other tools
Use this tool with Sort Lines, Remove Duplicates, or Add Line Numbers for multi-step text processing.
Add markdown formatting
Set prefix to '- ' for bullet lists, '> ' for blockquotes, or '## ' for headings across multiple lines.
Upload large files
For long documents, use Upload or drag-drop a .txt file instead of pasting manually.
Use for batch renaming lists
Add a common prefix or extension suffix to lists of filenames for batch processing scripts.
Privacy is built in
Your text is processed entirely on your device. Click Clear All to wipe everything.
Privacy & Security
This tool runs 100% in your browser. Your files stay entirely on your own device. Nothing is uploaded, nothing is shared, and no server, advertiser, or third party has access to your files.
If a tool saves your work on your own device, you can remove it at any time using the Clear All button. Some tools rely on an external service to return their result; in those cases, only the minimum data required for the request is sent, and never your files or content. Any ads shown on this page run in an isolated frame and cannot read, touch, or transmit anything you upload, paste, type, or download here. Advertisers may see standard visit information like your IP address and which page you're on, as described in our Privacy Policy, but your data itself stays fully under your control.
