If you’ve ever tried to add subtitles to a video, you’ve likely encountered the .SRT format. It’s the universal standard for subtitle files. But what if you only have a simple text file (.TXT) containing dialogue? Can you just rename it? Not exactly.
The SRT Formatting Rule:Each subtitle block must follow this exact four-part structure: Sequence Number: A numeric counter starting at 1. how to convert txt to srt file
def txt_to_srt(input_file, output_file, timings):
with open(input_file, 'r') as f:
lines = f.readlines()
with open(output_file, 'w') as f:
for i, line in enumerate(lines, 1):
if line.strip():
f.write(f"i\n")
f.write(f"timings[i-1]\n")
f.write(f"line\n\n")
Which Method Should You Choose?
| Your Situation | Best Method |
| :--- | :--- |
| Video under 30 seconds | Manual typing (Method 1) |
| Video with existing rough timestamps | Find & Replace hack (Method 2) |
| Long video (10+ min) on a computer | Subtitle Edit (Method 3A) |
| You are lazy (or in a hurry) | YouTube trick (Method 4) |
| You have audio but the TXT is wrong | AI Alignment (Happy Scribe/Rev) | How to Convert TXT to SRT File: The