UtilityLocal processing
Text Deduplicator
Clean duplicate lines with case options
Result
Converted result will appear here
About This Tool
Text Deduplicator is a free online tool. Remove duplicate lines, sort, trim All processing runs locally in your browser — files are never uploaded to any server, keeping your data private.
Use Cases
- Daily tasks: unit conversion, date math, word counting
- Giveaways, random numbers, and password generation
- QR/barcodes, Chinese conversion, and text cleanup
- Instant access — no registration required
How to Use
- Step 1
Paste multi-line text
- Step 2
Choose dedup options
- Step 3
View the result
- Step 4
Copy with one click
Frequently Asked Questions
- Is Text Deduplicator free?
- Yes, completely free with no registration required and no usage limits.
- Are my files uploaded to a server?
- No. Text Deduplicator processes everything locally in your browser. Your data never leaves your device or gets uploaded to any server.
- Which browsers are supported?
- Chrome, Firefox, Safari, Edge, and other modern browsers. We recommend using the latest version for the best experience.
- How do I use Text Deduplicator?
- 1. Paste multi-line text 2. Choose dedup options 3. View the result 4. Copy with one click