Webrecorder

Webrecorder is a technology company focused on digital preservation and web archiving. Its products are designed to capture websites and other browser-based online experiences in a form that can later be replayed with high fidelity. The company develops open-source software and supports technical standards used to package and exchange web archives, including the WACZ format. The company emerged from a preservation project associated with Rhizome, the New York-based arts organization known for its work in digital culture. In 2016, Rhizome received a multi-year grant of $600,000 from the Andrew W. Mellon Foundation to fund the continued operation and development of Webrecorder.io. The project was led by Ilya Kreymer and Dragan Espenschied and built on Kreymer's earlier consulting work for Rhizome. Its technical foundation included pywb, an open-source system for capturing and replaying WARC web-archive files. Webrecorder.io was intended to make web archiving more accessible than traditional institutional crawling systems. Rather than limiting preservation to static pages, the project emphasized the capture of dynamic, interactive, and media-rich websites. This approach uses browser-based techniques to preserve content that depends on JavaScript, client-side rendering, and other behaviors that can be difficult for conventional crawlers to reproduce. After several years of development, Rhizome and Kreymer announced in 2020 that Webrecorder would become a separate commercial entity. The hosted archiving service associated with the earlier project was renamed Conifer. Following the separation, Webrecorder concentrated on a portfolio of browser-based preservation tools and services. These included ArchiveWeb.page for interactive capture, ReplayWeb.page for playback, and Browsertrix, a cloud-based platform for browser-driven web crawling and archive management. ArchiveWeb.page is offered as both a browser extension and a standalone desktop application. It allows a user to preserve pages while browsing and export the resulting material in WARC or WACZ form. ReplayWeb.page provides browser-based and desktop playback for archived material, including WARC, WACZ, and HAR files. Browsertrix extends the workflow to hosted crawling, allowing users and organizations to initiate browser-based crawls, manage collected archives, and share replay links. The company's work also includes the development and standardization of browser-oriented web archive formats. In 2021, Webrecorder received multiple grants from the Filecoin Foundation for work on browser-based web-archive formats and continued development of Browsertrix. In 2024, Browsertrix introduced open signups, enabling individuals to create accounts and begin archiving websites without a prior institutional arrangement. Webrecorder's positioning sits at the intersection of open-source software, cultural heritage, digital preservation, research infrastructure, and commercial cloud services. Its tools are relevant to libraries, archives, museums, researchers, journalists, rights holders, and individuals seeking to preserve online material. The company differentiates its browser-based approach from crawler systems that do not execute a full browser environment: browser interaction can improve fidelity for complex websites, although interactive capture may require more user involvement and can demand greater computational resources.

Webrecorder's origins lie in a web-preservation initiative developed through Rhizome, an organization focused on contemporary art and digital culture. The initiative addressed a growing problem in digital preservation: many websites were no longer composed only of static documents. Interactive interfaces, JavaScript applications, streaming media, and client-side rendering made it difficult for conventional crawlers to create faithful, replayable records. In 2016, Rhizome received a $600,000 multi-year grant from the Andrew W. Mellon Foundation to continue operating and developing Webrecorder.io. Ilya Kreymer led the technical work, with Dragan Espenschied also serving in a project leadership role. The project built on Kreymer's earlier consulting work for Rhizome and used pywb as an important technical foundation for capturing and replaying WARC files. Webrecorder.io was designed as an open-source service that allowed users to archive and replay web pages. Its browser-oriented capture model sought to preserve online experiences with greater fidelity than approaches that rely solely on non-browser crawlers. The trade-off was that interactive capture could require a user to browse through content manually, and the use of a full browser could increase operational and computational requirements. After four years of development, Rhizome and Kreymer announced in 2020 that Webrecorder would split into an independent commercial company. The service previously associated with Webrecorder.io was renamed Conifer. Kreymer subsequently released ArchiveWeb.page and ReplayWeb.page, separating capture and replay into tools that could operate without a central server handling every step of the workflow. Webrecorder's product strategy then expanded from interactive capture and playback into hosted crawling and archive management. ArchiveWeb.page became a browser extension and standalone application for creating high-fidelity archives while browsing. ReplayWeb.page became a browser-based and desktop viewer for WARC, WACZ, and HAR material. Browsertrix introduced a cloud-based service for browser-driven crawling, archive sharing, and related management tasks. In 2021, Webrecorder received multiple grants from the Filecoin Foundation. The supported work included the design and standardization of browser-based web-archive formats and further development of Browsertrix. WACZ became a key part of the company's archive-exchange workflow, complementing the older WARC format with a package-oriented approach suited to browser-generated collections and replay. In 2024, Browsertrix opened registration to the public. This change broadened access beyond organizations that had arranged use of the service in advance, allowing individuals to create accounts and begin archiving websites. Webrecorder therefore operates across several related layers of the preservation ecosystem: open-source capture and replay software, archive file formats, hosted crawling, and services for sharing preserved web content. The company remains associated with the broader goals of digital preservation and durable access to online information. Its tools can be used by cultural institutions, libraries, researchers, journalists, archivists, and individual users. The central technical distinction of the Webrecorder approach is the use of browser-based capture and replay to address the complexity of modern websites.

• 2024

  Browsertrix opened public registration

  [1]Webrecorderen.wikipedia.org

  Browsertrix enabled open signups so anyone could create an account and begin archiving websites.

• 2021

  Filecoin Foundation grants supported browser-archive development

  [1]Webrecorderen.wikipedia.org

  Webrecorder received multiple grants for browser-based archive formats, standards work, and Browsertrix development.

• 2020

  Webrecorder became an independent commercial entity

  [1]Webrecorderen.wikipedia.org

  Rhizome and Ilya Kreymer announced the separation of Webrecorder from Rhizome; the related hosted service was renamed Conifer.

• 2016

  Rhizome received Mellon Foundation support

  [1]Webrecorderen.wikipedia.org

  Rhizome received a multi-year $600,000 grant from the Andrew W. Mellon Foundation to fund the continued operation and development of Webrecorder.io.

Webrecorder positions itself as an open-source and browser-first web-archiving company. Its products target high-fidelity preservation of dynamic websites and interactive online experiences, serving both institutional preservation programs and individual users.

• Web capture software · 2020

  ArchiveWeb.page

  ArchiveWeb.page is a browser extension and standalone desktop application for interactively capturing websites during normal browsing. It uses a full browser environment, which helps preserve dynamic pages and web applications that may not be fully captured by simpler crawler methods. Users can export captured material in WARC and WACZ formats for storage, transfer, or later replay.

• Cloud web-archiving platform · 2021

  Browsertrix

  Browsertrix is Webrecorder's cloud-based web-archiving suite. It uses browser-based crawling to collect websites and provides workflows for managing and sharing resulting web archives. The platform supports importing and exporting WACZ files and is intended to make browser-driven preservation available to organizations and, following the introduction of open signups, individual users.

• Web-archive replay software · 2020

  ReplayWeb.page

  ReplayWeb.page is a browser-based viewer for preserved web content, also distributed as a standalone desktop application. It can replay archives stored in WARC and WACZ formats and can view HAR files. The application is designed to provide access to captured websites without requiring the original live site or a central replay service for every viewing session.

• Web-archive file format

  WACZ

  WACZ is a packaged web-archive format maintained and advanced through Webrecorder's work on browser-based preservation. It supports the exchange and handling of collected web material in workflows involving tools such as ArchiveWeb.page, Browsertrix, and ReplayWeb.page. The format complements WARC-based capture by organizing archive data for distribution and replay.

• 2024

  Opening Browsertrix to public signupsStrategy

  Background

  Browsertrix had provided a cloud-based environment for browser-driven website archiving.

  Action taken

  Webrecorder enabled open registration, allowing anyone to create a Browsertrix account and begin archiving websites.

  Aftermath

  The change broadened access to Browsertrix beyond prearranged institutional use and made the service more accessible to individual archivists and researchers.

  Source

• 2021

  Expansion into browser-based archive standards and cloud crawlingStrategy

  Background

  Web preservation increasingly required browser-based methods and archive packages capable of representing modern interactive websites.

  Action taken

  The company used Filecoin Foundation grant support to work on browser-based archive formats and standards while continuing development of Browsertrix.

  Aftermath

  Webrecorder strengthened its role across capture, archive packaging, cloud crawling, and replay rather than focusing only on a single hosted archiving service.

  Source

• 2020

  Separation from Rhizome and renaming of the hosted serviceStrategy

  Background

  Webrecorder had been developed and operated in association with Rhizome since the earlier Webrecorder.io project. After several years of development, the partners announced a new organizational structure.

  Action taken

  Webrecorder became a separate commercial entity, while the associated archiving service was renamed Conifer. The company then developed independent capture and replay applications.

  Aftermath

  The separation established Webrecorder as an independent technology company and led to a product portfolio centered on ArchiveWeb.page, ReplayWeb.page, and Browsertrix.

  Source

• 2024

  Browsertrix opened signups to the public[1]Webrecorderen.wikipedia.org

  Product launch

  Browsertrix enabled open account registration, allowing anyone to create an account and begin archiving websites through the cloud-based service.

• 2021

  Webrecorder received Filecoin Foundation grants for browser-based archiving work[1]Webrecorderen.wikipedia.org

  Other

  The company received multiple grants supporting work on browser-based web-archive file formats, standards, and the development of Browsertrix.

• 2020

  Rhizome and Ilya Kreymer separated Webrecorder into a commercial entity[1]Webrecorderen.wikipedia.org

  M&A

  After several years of development under Rhizome, Webrecorder became a separate commercial entity and the associated hosted archiving service was renamed Conifer.

1. 1Webrecorderen.wikipedia.org
2. 2Webrecorder official websitewebrecorder.net