Software Alternatives, Accelerators & Startups

RegExr VS grep.app

Compare RegExr VS grep.app and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

RegExr logo RegExr

RegExr.com is an online tool to learn, build, and test Regular Expressions.

grep.app logo grep.app

grep.app searches code from over a half million public repositories on GitHub.
  • RegExr Landing page
    Landing page //
    2023-07-28
  • grep.app Landing page
    Landing page //
    2022-12-18

RegExr features and specs

  • User-Friendly Interface
    RegExr offers an intuitive and visually appealing interface that makes it easy for users to write, test, and understand regular expressions.
  • Real-time Feedback
    Changes to the regular expression and input text are reflected immediately, allowing users to see the effects of their adjustments in real-time.
  • Built-in Cheatsheet
    RegExr includes a handy cheatsheet that provides quick access to common regex patterns and syntax, making it easier for users to learn and reference rules.
  • Community Examples
    Users can explore and share community-generated regex patterns, which can serve as valuable examples or starting points for creating their own regex.
  • Detailed Explanation
    Each part of the regex pattern can be hovered over to display detailed tooltips explaining its function, aiding in the understanding of complex expressions.
  • Cross-Platform Accessibility
    As a web-based tool, RegExr can be accessed from any modern browser without the need for installation, making it convenient to use on multiple devices.

Possible disadvantages of RegExr

  • Limited Offline Use
    Since RegExr is a web-based application, it requires an internet connection, limiting its utility for users who need to work offline.
  • Learning Curve
    While the tool is user-friendly, users still need to have a foundational understanding of regular expressions to use RegExr effectively.
  • Performance Issues
    For extremely large inputs or very complex regular expressions, the tool may experience performance lags or slowdowns.
  • Limited Advanced Features
    RegExr may lack some advanced features found in more specialized or professional regex tools, such as integration with development environments or extensive scripting capabilities.
  • Privacy Concerns
    Users inputting sensitive data need to be cautious, as the web-based nature of the tool could raise privacy or data security concerns.

grep.app features and specs

  • Fast Search
    grep.app provides a rapid search experience across a wide array of repositories, leveraging optimized algorithms for quick text retrieval.
  • User-Friendly Interface
    The platform offers a clean and intuitive interface, making it easy for users to navigate and perform searches efficiently even if they are new to the tool.
  • Extensive Repository Support
    grep.app supports searching through a vast number of code repositories, offering developers a comprehensive tool for finding code snippets and relevant information.
  • Regular Updates
    The service frequently updates its repository index, ensuring that users have access to the most recent and relevant code data.
  • Open Source
    As an open-source project, grep.app allows users to contribute to its development, fostering a community-driven approach to improving the tool.

Possible disadvantages of grep.app

  • Limited Scope
    grep.app focuses primarily on code repositories, which may not be useful for individuals seeking to search non-code content or specific file types outside its scope.
  • Internet Dependency
    The platform requires an internet connection to access its search features, which might be a limitation for users in areas with unstable internet connectivity.
  • Privacy Concerns
    As with any online search tool, there may be concerns regarding the privacy of search queries and how they are stored or used by the service.
  • Learning Curve
    While generally user-friendly, some users may experience a learning curve in leveraging advanced search functions without prior experience or documentation.
  • Resource Intensity
    Executing large or complex searches can be resource-intensive, potentially slowing down performance for larger queries or datasets.

RegExr videos

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grep.app videos

Identify malware authors using grep.app

Category Popularity

0-100% (relative to RegExr and grep.app)
Programming Tools
100 100%
0% 0
Git
0 0%
100% 100
Regular Expressions
100 100%
0% 0
Code Collaboration
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, RegExr seems to be a lot more popular than grep.app. While we know about 367 links to RegExr, we've tracked only 15 mentions of grep.app. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

RegExr mentions (367)

  • The importance of the environment in Regex pattern matching
    However - here it becomes weird - when testing the original regex rule (the first one, without the \u00A0 part) on the same string in an interactive visualiser (https://regexr.com/ for instance), there is a match:. - Source: dev.to / 7 months ago
  • Ask HN: How did you learn Regex?
    Learned regex in the 90's from the Perl documentation, or possibly one of the oreilly perl references. That was a time where printed language references were more convenient than searching the internet. Perl still includes a shell component for accessing it's documentation, that was invaluable in those ancient times. Perl's regex documentation is rather fantastic. `perldoc perlre` from your terminal. Or... - Source: Hacker News / 9 months ago
  • Ask HN: How did you learn Regex?
    I read a lot on https://www.regular-expressions.info and experimented on https://rubular.com since I was also learning Ruby at the time. https://regexr.com is another good tool that breaks down your regex and matches. One of the things I remember being difficult at the beginning was the subtle differences between implementations, like `^` meaning "beginning of line" in Ruby (and others) but meaning "beginning of... - Source: Hacker News / 9 months ago
  • Ask HN: How did you learn Regex?
    Mostly building things that needed complex RegEx, and debugging my regular expressions with https://regexr.com/. - Source: Hacker News / 9 months ago
  • Form Validation In TypeScipt Projects Using Zod and React Hook Form
    For username: You are using the min() function to make sure the characters are not below three and, then the max() function checks that the characters are not beyond twenty-five. You also make use of Regex to make sure the username must contain only letters, numbers, and underscore. - Source: dev.to / 10 months ago
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grep.app mentions (15)

  • Ask HN: Little or even unknown website that you like to use?
    Https://grep.app - To search repos for patterns. I usually use it when I'm using an obscure or badly documented library. https://unicode.scarfboy.com/ - Unicode stuff. There are a lot of small Unicode tool sites. - Source: Hacker News / 2 months ago
  • Nginx Has Moved to GitHub
    There are some alternatives like https://grep.app or https://sourcegraph.com/search if you want fast live search, but at the end of the day these are generally expensive services to provide, especially for free anonymous users, so you should probably at least accept that service providers can and do change things like this. You can also run something like your own copy of Zoekt and then ingest repositories on... - Source: Hacker News / 8 months ago
  • Sourcegraph Went Dark
    Https://grep.app/ is another good one. Not sure how many repos they index though. - Source: Hacker News / 9 months ago
  • Code Finder – The ultimate search engine for GitHub repositories
    Https://grep.app/ is similar and seems to return results, but I have not compared it to native GitHub search. - Source: Hacker News / 11 months ago
  • Ask HN: Grep.app Alternative?
    Https://grep.app/ has served me well for the last couple of years finding snippets for random APIs. But recently I found that certain strings from open-source projects suddenly yield no results. For example: VaultServiceTimeout from https://github.com/rajanadar/VaultSharp has no results for https://grep.app/search?q=VaultServiceTimeout. Is there some alternative service for this task that is up-to-date? - Source: Hacker News / about 1 year ago
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What are some alternatives?

When comparing RegExr and grep.app, you can also consider the following products

regular expressions 101 - Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.

Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.

rubular - A ruby based regular expression editor

OpenGrok - OpenGrok is a fast and usable source code search and cross reference engine.

Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.

searchcode - A source code search engine