Try our Chrome extension
Easily add the current web-page from your browser directly into your changedetection.io tool, more great features coming soon!
Chrome Webstore
Changedetection.io needs your support!
You can help us by supporting changedetection.io on these platforms;
- Rate us at AlternativeTo.net
- Star us on GitHub
- Follow us at Twitter/X
- G2 Software reviews
- Check us out on LinkedIn
- And tell your friends and colleagues :)
The more popular changedetection.io is, the more time we can dedicate to adding amazing features!
Many thanks :)
changedetection.io team
Not yet seconds ago
False
Not yet seconds ago
Triggered text Ignored text Blocked text
1 hour ago
Skip to content
Navigation Menu
Sign in Appearance settings
* Platform
+ AI CODE CREATION
o GitHub Copilot Write better code with AI
o GitHub Copilot app Direct agents from issue to merge
o MCP Registry Integrate external tools
+ DEVELOPER WORKFLOWS
o Actions Automate any workflow
o Codespaces Instant dev environments
o Issues Plan and track work
o Code Review Manage code changes
o Code Quality Enforce quality at merge
+ APPLICATION SECURITY
o GitHub Advanced Security Find and fix vulnerabilities
o Code security Secure your code as you build
o Secret protection Stop leaks before they start
+ EXPLORE
o Why GitHub
o Documentation
o Blog
o Changelog
o Marketplace
View all features
* Solutions
+ BY COMPANY SIZE
o Enterprises
o Small and medium teams
o Startups
o Nonprofits
+ BY USE CASE
o App Modernization
o DevSecOps
o DevOps
o CI/CD
o View all use cases
+ BY INDUSTRY
o Healthcare
o Financial services
o Manufacturing
o Government
o View all industries
View all solutions
* Resources
+ EXPLORE BY TOPIC
o AI
o Software Development
o DevOps
o Security
o View all topics
+ EXPLORE BY TYPE
o Customer stories
o Events & webinars
o Ebooks & reports
o Business insights
o GitHub Skills
+ SUPPORT & SERVICES
o Documentation
o Customer support
o Community forum
o Trust center
o Partners
View all resources
* Open Source
+ COMMUNITY
o GitHub Sponsors Fund open source developers
+ PROGRAMS
o Security Lab
o Maintainer Community
o Accelerator
o GitHub Stars
o Archive Program
+ REPOSITORIES
o Topics
o Trending
o Collections
* Enterprise
+ ENTERPRISE SOLUTIONS
o Enterprise platform AI-powered developer platform
+ AVAILABLE ADD-ONS
o GitHub Advanced Security Enterprise-grade security features
o Copilot for Business Enterprise-grade AI features
o Premium Support Enterprise-grade 24/7 support
* Pricing
Type / to search
Sign in
Sign up Appearance settings
You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
Uh oh!
There was an error while loading. Please reload this page.
fivetran / great_expectations Public
* Notifications You must be signed in to change notification settings
* Fork 1.8k
* Star 11.7k
* Code
* Issues 23
* Pull requests 21
* Discussions
* Actions
* Projects
* Security and quality 0
* Insights
Additional navigation options
* Code
* Issues
* Pull requests
* Discussions
* Actions
* Projects
* Security and quality
* Insights
develop
Branches Tags
Go to file
Code
Open more actions menu
Folders and files
Name Name Last commit message Last commit date
Latest commit
History
13,724 Commits
13,724 Commits
.github .github
assets assets
ci ci
contrib contrib
docs docs
great_expectations great_expectations
reqs reqs
scripts scripts
tests tests
.clabot .clabot
.coderabbit.yaml .coderabbit.yaml
.git-blame-ignore-revs .git-blame-ignore-revs
.gitattributes .gitattributes
.gitignore .gitignore
.pre-commit-config.yaml .pre-commit-config.yaml
.readthedocs.yml .readthedocs.yml
AGENTS.md AGENTS.md
CITATION.cff CITATION.cff
CLA.md CLA.md
CODEOWNERS CODEOWNERS
CODE_OF_CONDUCT.md CODE_OF_CONDUCT.md
CONTRIBUTING.md CONTRIBUTING.md
CONTRIBUTING_CODE.md CONTRIBUTING_CODE.md
CONTRIBUTING_WORKFLOWS.md CONTRIBUTING_WORKFLOWS.md
DEVELOPMENT.md DEVELOPMENT.md
LICENSE LICENSE
MANIFEST.in MANIFEST.in
README.md README.md
SECURITY.md SECURITY.md
constraints-dev.txt constraints-dev.txt
lychee.toml lychee.toml
pyproject.toml pyproject.toml
requirements-dev.txt requirements-dev.txt
requirements-types.txt requirements-types.txt
requirements.txt requirements.txt
setup.cfg setup.cfg
setup.py setup.py
tasks.py tasks.py
versioneer.py versioneer.py
View all files
Repository files navigation
*
* README
* Code of conduct
* Contributing
* Apache-2.0 license
* Security
More items
About GX Core
GX Core combines the collective wisdom of thousands of community members with a proven track record in data quality deployments worldwide, wrapped into a super-simple package for data teams.
Its powerful technical tools start with Expectations: expressive and extensible unit tests for your data. Expectations foster collaboration by giving teams a common language to express data quality tests in an intuitive way. You can automatically generate documentation for each set of validation results, making it easy for everyone to stay on the same page. This not only simplifies your data quality processes, but helps preserve your organization’s institutional knowledge about its data.
Learn more about how data teams are using GX Core in our featured case studies.
Integration support policy
GX Core supports Python 3.10 through 3.13. Experimental support for Python 3.14 and later can be enabled by setting a GX_PYTHON_EXPERIMENTAL environment variable when installing great_expectations.
For data sources and other integrations that GX supports, see the compatibility reference for additional information.
Get started
GX recommends deploying GX Core within a virtual environment. For more information about getting started with GX Core, see Introduction to GX Core.
1. Run the following command in an empty base directory inside a Python virtual environment to install GX Core:
pip install great_expectations
2. Run the following command to import the great_expectations module and create a Data Context:
import great_expectations as gx
context = gx.get_context()
Get support from GX and the community
They are listed in the order in which GX is prioritizing the support issues:
1. Issues and PRs in the GX GitHub repository
2. Questions posted to the GX Core Discourse forum
3. Questions posted to the GX Slack community channel
Contribute
We truly value the contributions of our community and always welcome pull requests. PRs are encouraged for both bug fixes and new features. For feature requests, we ask that you first open an issue for discussion to ensure the feature fits within the vision for GX Core and to align on the approach so that your time and effort are well spent. Thank you for being a crucial part of GX Core!
See CONTRIBUTING.md for details on how to propose a change, claim an issue, and submit a pull request.
Code of conduct
Everyone interacting in GX Core project codebases, Discourse forums, Slack channels, and email communications is expected to adhere to the GX Community Code of Conduct.
About
Always know what to expect from your data.
docs.greatexpectations.io/
Topics
cleandatadata-engineeringdata-profilersdata-profilingdata-qualitydata-sciencedata-unit-testsdatacleanerdatacleaningdataqualitydataunittestedaexploratory-analysisexploratory-data-analysisexploratorydataanalysismlopspipelinepipeline-debtpipeline-testingpipeline-tests
Resources
Readme
Apache-2.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Security policy
Security policy
Cite this repository
Activity
Custom properties
Stars
11.7k stars
Watchers
100 watching
Forks
1.8k forks
Report repository
Releases
Packages
Used by
Contributors
Languages
Footer
© 2026 GitHub, Inc.
Footer navigation
* Terms
* Privacy
* Security
* Status
* Community
* Docs
* Contact
* Manage cookies
* Do not share my personal information
You can’t perform that action at this time.
For now, Differences are performed on text, not graphically, only the latest screenshot is available.
Screenshot requires a Content Fetcher ( Sockpuppetbrowser, selenium, etc ) that supports screenshots.