Windows · Free download · General
Flex2.5.3
Flex : A tool for generating programs that perform pattern-matching on text.
- Operating system
- Windows 10/11
- File size
- 375 KB
- License
- Freeware
- Last updated
- Apr 30, 2026
146 downloads·1102 page views
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Overview
What is Flex?
Flex : A tool for generating programs that perform pattern-matching on text.
In depth
A closer look at Flex
Flex is a tool for generating scanners: programs which recognized lexical patterns in text. Flex reads the given input files, or its standard input if no file names are given, for a description of a scanner to generate. The description is in the form of pairs of regular expressions and C code, called rules. Give Flex a try to fully assess its capabilities!
Verdict
Should you download Flex?
Flex runs on Windows 10/11 and is available under the Freeware license — the installer is 375 KB. We’ve catalogued it under General.
Verified clean. Every Flex build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance
Flex specifications
- Category
- General
- Publisher
- Vern Paxson
- Last updated
- Apr 30, 2026
- License
- Freeware
- Operating system
- Windows 10/11
- File size
- 375 KB
- Price
- Free
- Page views
- 1102
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