Sorting a list alphabetically is one of those tasks that sounds trivial until you're staring at 3,000 lines in a plain text file. Here's how to do it quickly — no Excel, no scripts required.
Sort Online in Seconds
Head to remove-lines.com and enable Sort A→Z (or Sort Z→A for reverse). Click Process. Your entire list is sorted in milliseconds, right in your browser.
Available Sort Modes
- A → Z: Standard alphabetical order (locale-aware)
- Z → A: Reverse alphabetical
- By Length: Shortest lines first — useful for keyword lists
- Reverse Order: Flip the current order (last line becomes first)
Combining Sort with Deduplication
The most common workflow is to enable Remove Duplicates and Sort A→Z together. This gives you a clean, alphabetically ordered unique list in one step — ideal for keyword research exports, URL lists, and domain inventories.
Case and Sorting
By default, uppercase letters sort before lowercase in ASCII order ("B" comes before "a"). For natural alphabetical sorting regardless of case, enable Lowercase first, then sort. remove-lines.com applies all enabled options in the correct order automatically.
Sorting in Excel
If you prefer Excel: paste your list into column A, select it, then use Data → Sort A to Z. The limitation is that Excel sorts by the entire cell value, which is the same as line-by-line sorting in most cases.
Sorting in Python
with open('input.txt') as f:
lines = [l.rstrip('\n') for l in f]
lines.sort(key=str.lower) # case-insensitive
with open('output.txt', 'w') as f:
f.write('\n'.join(lines))