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Donor managementOpen source
CiviCRM
Manage relationships, contributions, memberships and events in an open-source constituent relationship manager.
Free software; budget separately for hosting, setup and support.
- Possible use
- Organizations that want control over their donor and member records.
- How it runs
- Self-hosted or paid hosting
- Before choosing it
- Someone must maintain the installation, backups and updates. Hosted CiviCRM services have their own prices.
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Source checked Oct 25, 2026 · Editorial review pending
OperationsFree tier
CryptPad
Collaborative documents, sheets and other office tools with end-to-end encryption.
Free public-instance accounts and self-hosting are available; additional services are paid.
- Possible use
- Teams that want collaborative documents with encryption built into the service.
- How it runs
- Hosted service or self-hosted
- Before choosing it
- Storage and support depend on the chosen instance or plan. Understand recovery and sharing before relying on it for essential records.
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Source checked Oct 25, 2026 · Editorial review pending
ParticipationOpen source
Decidim
Run participation processes, proposals, meetings and collective decisions on an open-source platform.
Free software; deployment and facilitation require resources.
- Possible use
- Organizations inviting members or communities into decisions.
- How it runs
- Self-hosted or provider-hosted
- Before choosing it
- Someone must operate the platform and design a fair participation process. A public consultation also needs clear rules and a response to what people say.
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Source checked Oct 25, 2026 · Editorial review pending
FundraisingPaid or usage fees
Donorbox
Donation forms, recurring giving, fundraising pages and donor management.
Platform and payment-processing fees apply; some features and plans add charges.
- Possible use
- Organizations that need embedded forms and recurring donations.
- How it runs
- Hosted service
- Before choosing it
- A free-to-start account does not make transactions free. Check the rate for each campaign type, processor, country and add-on.
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Source checked Oct 25, 2026 · Editorial review pending
FundraisingFree with conditions
Givebutter
Donation forms, fundraising pages, donor management and events in one hosted service.
Core fundraising is free when optional donor tips are enabled. Paid Plus features are separate.
- Possible use
- Teams that want donation pages and supporter records together.
- How it runs
- Hosted service
- Before choosing it
- The pricing page lists a platform fee and standard processing charges when tips are disabled. Confirm eligibility, payment availability and the donor checkout experience.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchFree tier
KoboToolbox
Collect and manage survey data for social impact work.
The Community Plan includes 5,000 submissions per month and 1 GB of file storage. Higher capacity is paid.
- Possible use
- Field teams collecting structured information.
- How it runs
- Hosted service or self-hosted
- Before choosing it
- The quota is an account limit. Choose the appropriate server and review consent, access controls and the data you actually need.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchOpen source
LimeSurvey
Create surveys, collect responses and export results.
Community Edition is free to self-host. Cloud has a limited free plan and paid plans.
- Possible use
- Organizations running surveys or community feedback projects.
- How it runs
- Self-hosted or managed cloud
- Before choosing it
- Cloud response and storage quotas depend on the plan. Self-hosting requires maintenance; good survey design and informed consent still matter.
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Source checked Oct 25, 2026 · Editorial review pending
PublishingOpen source
Matomo
Website analytics with self-hosted and managed cloud options.
The on-premise core can be downloaded free; cloud hosting and premium features are paid.
- Possible use
- Teams that want to understand website use and choose where analytics are hosted.
- How it runs
- Self-hosted or paid hosting
- Before choosing it
- Tracking configuration, consent decisions, hosting and updates remain your responsibility. Paid plugins and support can add cost.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchOpen source
Metabase
Explore data and build shared dashboards with a query builder and SQL tools.
The open-source edition is free to self-host. Managed plans and additional features are paid.
- Possible use
- Organizations with an existing database and someone able to manage access.
- How it runs
- Self-hosted or paid hosting
- Before choosing it
- Hosting, database connections and permissions need maintenance. A dashboard does not establish that a program caused an outcome.
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Source checked Oct 25, 2026 · Editorial review pending
OperationsOpen source
Nextcloud Files
Share and synchronize files through a workspace you can host or obtain from a provider.
Self-hosted software; hosting and enterprise services have separate costs.
- Possible use
- Organizations that need shared files with control over their infrastructure.
- How it runs
- Self-hosted or provider-hosted
- Before choosing it
- You need a maintained installation or a hosting provider. Review sharing permissions, backups and recovery before storing sensitive records.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchOpen source
ODK
Build forms with branching, multiple languages and offline data collection.
Open-source software; managed ODK Cloud is a paid service.
- Possible use
- Teams collecting data where connectivity is unreliable.
- How it runs
- Self-hosted or paid hosting
- Before choosing it
- Plan for devices, data collection training and a maintained server or cloud subscription. Cloud capacity and support depend on the plan.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchFree software
OpenRefine
Clean inconsistent names, categories and formats in a dataset before analyzing it.
Free, open-source desktop software.
- Possible use
- Teams cleaning exports, survey results or public data.
- How it runs
- Runs on your computer
- Before choosing it
- External reconciliation services can receive data you choose to send. Keep a backup and inspect changes before re-importing records.
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Source checked Oct 25, 2026 · Editorial review pending
Data and researchOpen source
Uwazi
Organize documents and structured records, connect them and publish or search a collection.
Free open-source software and a limited free managed plan; larger managed plans and services are paid.
- Possible use
- Teams maintaining an evidence library or documentation project.
- How it runs
- Self-hosted or managed service
- Before choosing it
- Hosting and support depend on the arrangement. Configure permissions and retention around the needs of people represented in the records.
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Source checked Oct 25, 2026 · Editorial review pending
PublishingOpen source
WordPress
An open-source publishing system for a charity website, news and public resources.
Free software; hosting, domains and some plugins or themes are separate.
- Possible use
- Teams maintaining a public website and regularly publishing material.
- How it runs
- Self-hosted or provider-hosted
- Before choosing it
- Choose maintained plugins, keep software updated and assign responsibility for backups and accessibility. WordPress.org is the software project.
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Source checked Oct 25, 2026 · Editorial review pending
FundraisingFree with conditions
Zeffy
Hosted fundraising tools with a model funded by optional donor contributions to Zeffy.
The provider says it covers platform and transaction fees through optional donor contributions.
- Possible use
- Eligible nonprofits looking for fundraising without fees charged to the organization.
- How it runs
- Hosted service
- Before choosing it
- Eligibility and payment availability still apply. Review how the optional contribution appears to donors before choosing a service.
Explore the tool ↗ Provider sources (1)
Source checked Oct 25, 2026 · Editorial review pending