DocumentCloud
An open-source, web-based platform that helps journalists and other organizations upload, analyze, annotate, collaborate on, and publish primary-source documents.
Last updated August 22, 2026
Overview
DocumentCloud is an open-source software-as-a-service platform built around the needs of investigative journalism and document-based reporting. It lets users upload source material, make documents searchable, extract and inspect information, add annotations, collaborate with colleagues, and publish documents for public review. Its central editorial purpose is to make the evidence behind a story more accessible and transparent, allowing readers to examine original records rather than relying only on a reporter's description of them. The project began in 2009 through a Knight News Challenge grant awarded to journalists Scott Klein and Eric Umansky of ProPublica and Aron Pilhofer of The New York Times. The initial system was developed by The New York Times Digital team, with a group that included designers and developers such as Elliott Malkin, Sascha Mombartz, Jeremy Ashkenas, Ben Koski, and Jake Harris. A number of news organizations, including The Washington Post, The New York Times, and the Chicago Tribune, participated in early testing. DocumentCloud subsequently became a widely recognized part of the digital-investigative-reporting toolkit. A public beta was presented at the 2010 conference of Investigative Reporters and Editors. Within approximately a year, participating news organizations had uploaded one million pages. The platform's development also produced or helped produce open-source software projects associated with its technical stack, including Backbone.js, Jammit, and Underscore.js. These projects contributed to DocumentCloud's influence beyond journalism by providing reusable tools for web application development. In 2011, DocumentCloud received a second Knight News Challenge grant and dissolved its standalone nonprofit structure before merging with Investigative Reporters and Editors, commonly known as IRE. IRE then assumed primary responsibility for maintaining and developing the platform and administering grant support. A further Knight Foundation grant in 2014 supported reliability improvements, new features, and work toward long-term financial sustainability. For much of its history, accounts were provided without charge to journalism organizations, although the project indicated that it would need to develop a paid model as grant funding alone became insufficient. On June 11, 2018, DocumentCloud and MuckRock announced plans to merge. The combination linked DocumentCloud's document-management and publishing capabilities with MuckRock's public-records request and civic-information work. DocumentCloud's enduring role is as infrastructure for evidence-driven reporting: it serves newsrooms and investigative organizations that need to preserve, search, contextualize, and disclose source documents. By May 2023, users had uploaded more than five million documents, according to the cited Wikipedia account.
History
DocumentCloud was created in response to a recurring problem in investigative reporting: news organizations often obtain large collections of primary documents but lack an efficient way to search, inspect, explain, and disclose them. In 2009, ProPublica journalists Scott Klein and Eric Umansky and New York Times journalist Aron Pilhofer received a Knight News Challenge grant to develop a shared platform for this purpose. The first version was built by The New York Times Digital team. The initial development group included Elliott Malkin and Sascha Mombartz, with Jeremy Ashkenas, Ben Koski, and Jake Harris involved in engineering and development work. Ashkenas became the lead developer. By September 2009, several prominent news organizations had agreed to test the system, including The Washington Post, The New York Times, and the Chicago Tribune. DocumentCloud's public beta was announced at the 2010 NICAR conference organized by Investigative Reporters and Editors. The service gained adoption quickly among investigative and public-interest newsrooms; within a year of the public beta, contributing organizations had uploaded one million pages. The project was also notable as an open-source engineering effort. Software associated with its development included Backbone.js, Jammit, and Underscore.js. These projects became useful outside DocumentCloud and helped demonstrate how newsroom technology work could produce general-purpose tools for the broader web-development community. In 2011, DocumentCloud received a second Knight News Challenge grant. During the same period, its independent nonprofit entity was dissolved and the project merged with Investigative Reporters and Editors. IRE became responsible for the platform's principal maintenance and development work and for managing grant funding. This arrangement placed DocumentCloud within an established journalism-support organization while retaining its focus on document-centered reporting. A third Knight Foundation grant followed in summer 2014. Its stated objectives included improving platform stability, adding features, and developing a more sustainable financial model. Historically, journalism organizations could use DocumentCloud without paying account fees, but the project acknowledged that dependence on grants created a need to consider paid access or another durable funding structure. On June 11, 2018, DocumentCloud and MuckRock announced that they would merge. MuckRock's work with public-records requests and civic information complemented DocumentCloud's tools for handling and publishing source records. The announced combination represented an effort to connect the acquisition of public documents with their organization, analysis, and public presentation. DocumentCloud remains associated with transparency-oriented journalism and public-interest research. Its basic model combines private newsroom workflows with optional public disclosure: reporters can process documents collaboratively before publication, then publish the underlying records with annotations and context. According to the referenced Wikipedia account, users had uploaded more than five million documents by May 2023. The available reference material does not establish a current headquarters, legal owner, executive roster, pricing structure, or operating metrics beyond that upload figure.
- 2023More than five million documents uploaded
The referenced account reported that DocumentCloud users had uploaded over five million documents by May 2023.
- 2018Merger with MuckRock announced
DocumentCloud and MuckRock announced plans to merge their organizations and capabilities.
- 2014Third Knight Foundation grant
The grant supported reliability, new features, and planning for longer-term financial sustainability.
- 2011Second Knight grant and merger with IRE
The project received additional Knight funding, dissolved its standalone nonprofit entity, and merged with Investigative Reporters and Editors.
- 2010Public beta launch
DocumentCloud announced its public beta at the NICAR conference of Investigative Reporters and Editors.
- 2009Initial development begins
Scott Klein, Eric Umansky, and Aron Pilhofer received a Knight News Challenge grant to create a document platform for investigative journalism.
- 2009Early newsroom testing
By September, a group of news organizations including The Washington Post, The New York Times, and the Chicago Tribune had joined as beta testers.
Products and positioning
An open-source, journalism-oriented document platform focused on transparency, evidence preservation, collaborative review, and public access to primary sources.
DocumentCloud platformEnterprise SaaS and document publishing2010
DocumentCloud is a browser-based service for uploading and organizing primary-source documents. Its workflow supports document search and analysis, annotation, collaboration among newsroom staff, and publication for public inspection. The product is designed for records obtained through investigative reporting and public-records work, where preserving the source document and showing its relationship to a published story are important parts of editorial transparency.
Document annotation and publishing toolsJournalism workflow software
The platform's annotation and publishing functions allow reporters and editors to add explanatory context to source material and make selected documents available to readers. These capabilities bridge internal editorial review and public-facing evidence, helping audiences inspect records that underpin investigative or accountability reporting.
Flagship businesses
- Document upload, OCR/search, annotation, collaboration, and publication tools
Brand decisions
- 2018Combine DocumentCloud with MuckRockM&A
DocumentCloud's document-management and publication tools complemented MuckRock's work with public-records requests and civic information.
What changed. The two organizations announced on June 11 that they would merge.
Aftermath. The available reference material does not provide detailed post-merger governance, ownership, or organizational outcomes.
- 2014Pursue a more sustainable funding modelStrategy
DocumentCloud had historically provided free accounts to journalism organizations while relying heavily on grants, creating a need to plan for financial sustainability.
What changed. A third Knight Foundation grant was directed toward platform stability, feature work, and development of a sustainability plan. The project also indicated that it intended to implement a paid model.
Aftermath. The available reference material does not specify the final pricing structure or its subsequent financial results.
- 2011Merge the DocumentCloud nonprofit with Investigative Reporters and EditorsM&A
After receiving a second Knight News Challenge grant, DocumentCloud ended its separate nonprofit structure and joined Investigative Reporters and Editors.
What changed. IRE assumed primary responsibility for maintaining and developing the platform and administering its grant funding.
Aftermath. The project continued as part of a nonprofit journalism organization rather than as a standalone nonprofit entity.
Leadership
| Name | Title | Tenure |
|---|---|---|
| Aron Pilhofer | Co-founderformer | 2009– |
| Eric Umansky | Co-founderformer | 2009– |
| Jeremy Ashkenas | Lead developer during initial developmentformer | 2009– |
| Scott Klein | Co-founderformer | 2009– |
Recent events
- 2018DocumentCloud and MuckRock announce merger
DocumentCloud and MuckRock announced plans to combine their organizations and related civic-information capabilities.
M&A - 2014DocumentCloud receives a third Knight Foundation grant
A further grant supported platform stability, feature development, and planning for financial sustainability.
Other - 2011DocumentCloud receives a second Knight News Challenge grant and joins IRE
DocumentCloud received additional Knight support, dissolved its separate nonprofit entity, and merged with Investigative Reporters and Editors, which took primary responsibility for the service.
M&A - 2010DocumentCloud announces public beta at NICAR
The platform's public beta was announced at the conference of Investigative Reporters and Editors, opening the project beyond its initial group of newsroom testers.
Product launch
Sources
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