Replacebot
@RegexpBot
FreeEN
Runs a regular expression over text you send and returns the result - a scratchpad for testing a pattern before it goes into code. Free, /help explains the syntax.
Key features
- Applies a regular expression to your text
- Shows the transformed result
- /help explains the syntax
- Free, no account
What Replacebot does
Learning regular expressions is mostly learning by trying, and the loop is quicker when you can try one in the same window where you are talking about it. Send the text and the pattern, get the transformed result, adjust and repeat.
It is a teaching tool as much as a utility: a pattern that silently matches nothing looks the same in code as a pattern that is right, and seeing the output makes the difference obvious. For anything sensitive, remember the text passes through someone else's bot.
How to start
- Open @RegexpBot and press Start
- Send /help to see the syntax it expects
- Send the text and the pattern, then adjust
Commands
/helpSyntax and examplesPricing and limits
Free
Pros / Cons
- Fast feedback loop while learning regex
- No editor or website needed
- Free
- Text passes through a third-party bot
- No saved history of your patterns
Alternatives
Score breakdown
| Criterion | Weight | Points | |
|---|---|---|---|
| Functionality | 25 | 6 / 10 | |
| Reliability & speed | 15 | 7 / 10 | |
| Popularity & trust | 15 | 5 / 10 | |
| Price & free tier | 10 | 10 / 10 | |
| Usability | 10 | 8 / 10 | |
| Safety & privacy | 10 | 7 / 10 | |
| Freshness | 5 | 6 / 10 | |
| Localization | 5 | 10 / 10 | |
| No intrusive ads | 5 | 10 / 10 | |
| Score | 100 | 70.5 |
FAQ
Is it a regex tester or a replacer?
Both in practice - you give it text and a pattern and it returns the reformatted output, which is how you test the pattern.
Should I paste production data into it?
No. Use a sample. The text leaves your device and lands on someone else's server.
Technical details
- Inline mode
- Mini App
- Works in groups
- Works in channels
- Accepts voice
- Accepts files
- Requires phone number
- Requires registration
- Shows ads
