EDRLab
EDRLab is a Paris-based non-profit that develops open-source digital reading software and vendor-neutral DRM (LCP), including the Readium toolkit and Thorium Reader. It serves publishers, libraries, and reading-app developers seeking accessibility-first, standards-based infrastructure.
- Company typePrivate
- Founded2015
- HeadquartersParis, France
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What EDRLab does
EDRLab (European Digital Reading Lab) is a Paris-based non-profit development laboratory founded in 2015 that builds open-source software and open standards for the digital publishing sector. It serves publishers, libraries, aggregators, and reading-application developers that require vendor-neutral, accessibility-first infrastructure for ebooks, audiobooks, comics, and scholarly content. The organization's work centers on three pillars: the Readium toolkit family of open-source SDKs (Desktop, Mobile iOS/Android, Web) that act as reference implementations for EPUB-based reading applications; Thorium Reader, a free multilingual reading client available on Windows, macOS, Linux, iOS (in beta), and Web, which has surpassed one million downloads; and LCP (Licensed Content Protection), a vendor-neutral DRM standardized as ISO/IEC 23078-2 that protects more than 12 million ebooks across 84 countries.
Technically, the stack is built on Electron.js, Node.js, TypeScript, and React components, with HTML5/CSS3 as the rendering foundation. LCP is integrated into 40+ production systems worldwide, including the German national e-lending platform Die Onleihe (25,000+ daily licenses) and the Italian library platform MLOL. EDRLab also incubates the DiViNa format for digital comics and manga, develops accessibility innovations such as Readium Speech (text-to-speech) and the Radiance project for AI-assisted image descriptions, and contributes to W3C EPUB 3 maintenance and IETF specifications including AI-Pref and TDM Reservation Protocol work.
EDRLab operates a hybrid non-profit revenue model combining professional membership fees from 65+ publishers, libraries, and technology companies; LCP licensing and royalties that fund team expansion; public grants including support from the French Ministry of Culture since 2016 and Creative Europe co-funding of the ThinkPub training program; and voluntary donations via GitHub Sponsors. Go-to-market is community-led through working groups, the annual Digital Publishing Summit, the ThinkPub training program, and direct engagement with standards bodies, rather than a traditional direct sales motion.
EDRLab firmographics
Firmographics- Name
- EDRLab
- Legal name
- EDRLab – Association déclarée
- Website
- https://edrlab.org
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- EDRLab is a Paris-based non-profit that develops open-source digital reading software and vendor-neutral DRM (LCP), including the Readium toolkit and Thorium Reader. It serves publishers, libraries, and reading-app developers seeking accessibility-first, standards-based infrastructure.
- Ownership category
- akta.pro rank
EDRLab industry classification
Industry- Product category
- Digital Publishing Software
- NAICS
- Software Publishers (5132), Software Publishers (51321)
- SIC
- Services-Prepackaged Software (7372), Miscellaneous Publishing (2741)
- akta.pro primary industry
- OER Authoring, Remixing & Publishing Tools/Platforms (EDAGAJAM)
- akta.pro secondary industries
- Standards, Packaging & Interoperability Tools (SCORM/xAPI/cmi5/LTI) (EDAFAHAH), Accessibility & Inclusive Design Tooling for Authoring (WCAG/508) (EDAFAHAL), OER Licensing, Rights & Open Policy Support (Creative Commons) (EDAGAJAO), Digital Publishing Creation & Formatting Tools (EPUB, conversion, layout) (MPAJAMAG)
Keywords
Where EDRLab is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
EDRLab business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations
Revenue model
- Membership fees: EDRLab is funded by professional members including publishers, libraries, and technology companies. Membership supports industry-wide adoption of EPUB 3 and Readium technologies in Europe. The organization collected 65 professional members by 2021 and membership continues to grow.
- LCP licensing and royalties: A growing share of revenues comes from LCP (Licensed Content Protection), allowing the team to expand while keeping technologies open and widely available. LCP is operated worldwide by EDRLab.
- Grants and donations: Funding from public grants, private donations, and organizations including the French Ministry of Culture. Thorium Reader development is funded by members, grants, and small recurring donations from users and companies via GitHub Sponsors.
- Event fees: Digital Publishing Summit charges registration fees to non-members, with free participation for EDRLab and IPDA members. Low entrance fees for other participants.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Thorium Reader - Free tier |
| Subscription | Annual | Professional membership |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels7 records
EDRLab product offering
Product offeringCore offering
EDRLab develops and maintains open-source software and open standards for the digital publishing sector. Its core offerings are the Readium toolkits (open-source SDKs for building EPUB 3 reading apps on iOS, Android, web, and desktop), the Thorium family of free accessible reading applications (Thorium Reader, Thorium Mobile in beta, Thorium Web v1.0), and LCP (Licensed Content Protection), a vendor-neutral, ISO/IEC 23078-2-standardized DRM used by publishers, libraries, and e-reader manufacturers worldwide.
Product overview
EDRLab is a non-profit organization (European Digital Reading Lab) that develops open-source software and open standards for the digital publishing sector. Its product portfolio centers on the Readium toolkit ecosystem - a modular set of open-source reading development kits for building EPUB-compatible applications across platforms (Desktop, Mobile iOS/Android, and Web). The flagship consumer product is Thorium Reader, a free, highly accessible reading application for Windows, MacOS, and Linux. EDRLab also maintains LCP (Licensed Content Protection), a vendor-neutral DRM solution, and develops standards like the DiViNa format for comics/manga, W3C Audiobooks, and EPUB 3. Recent additions include Thorium Mobile (iOS beta) and Thorium Web (v1.0) to create a cross-platform reading ecosystem. The organization also supports accessibility-focused initiatives like the Qualebook quality framework and the Radiance AI project for automated image descriptions.
Differentiator
Problem solved
Functional benefit
Brands
- Thorium Reader: Free, highly accessible, multilingual EPUB reader application for Windows, macOS, and Linux with full support for EPUB 3, audiobooks, PDF, DAISY, and LCP-protected publications.
- Thorium Mobile
- Thorium Web
- Readium Mobile
- Readium Desktop
- DiViNa
- Qualebook
- LCP
- TDM Reservation Protocol
Products and services
- Thorium Reader Free, highly accessible, multilingual EPUB reader for Windows, macOS, and Linux that supports EPUB 2/3/FXL, PDF, DAISY 2.02/3, W3C Audiobooks, DiViNa publications, and LCP-protected content, with OPDS catalog browsing, bookmarks, full-text search, Media Overlays, and Read Aloud features. Built for readers and library patrons, including visually impaired and dyslexic users.
- LCP (Licensed Content Protection) Vendor-neutral, interoperable Digital Rights Management (DRM) solution for protecting digital publications including EPUB, PDF, audiobooks, and DiViNa. Supports lending, sales, and subscriptions without requiring third-party accounts, and is ISO/IEC 23078-2 certified. Licensed to publishers, libraries, e-reader OEMs, and reading-app integrators worldwide.
- Readium Desktop Open-source software development kit for building desktop EPUB 3 reading applications. Provides building blocks for navigating EPUB publications with full support for the EPUB 3 standard and LCP DRM. Used by developers and OEMs to assemble desktop reading apps, including Thorium Reader itself.
- Readium Mobile (iOS and Android) Reference open-source iOS and Android reading toolkit for mobile devices, providing building blocks for navigating EPUB publications, integrating LCP DRM, and supporting accessibility features. Adopted by reading-app developers and embedded by e-reader manufacturers.
- Readium Web Web-based reading toolkit (and the underlying Thorium Web application at version 1.0) for browser-based EPUB 3 reading applications, supporting reflowable and fixed-layout EPUBs with planned audio support and reading-position sync. Used by web developers to build browser-based reading experiences.
- DiViNa Format Open exchange format for digital comics, manga, webtoons, and visual narratives, incubated by EDRLab's BDCoMa working group, with an open-source JavaScript player integrated into the Readium toolkit. Targeted at digital publishers and comics platforms seeking an interoperable visual-narrative standard.
- Qualebook Quality assurance framework created by SNE and EDRLab providing 87 concrete rules for high-quality ebooks covering reliability, usability, and value to readers; published under CC BY-SA. Used by publishers and digital content creators to validate ebook quality.
- Thorium Mobile (Private Beta) Multimodal, voice-controllable iOS reading app that supports ebooks, audiobooks, and LCP-protected publications with strong accessibility features. Targeted at iOS end-users including print-disabled readers; currently in private beta.
- Lis Mon Livre Open solution for voice access to online libraries of audio books through Google and Amazon smart speakers, developed in partnership with Association Valentin Haüy and CELA. Targeted at visually impaired and print-disabled audiobook library patrons.
- Radiance Project Research initiative exploring how AI can automatically generate or improve image descriptions in scholarly publications, launched with partners Isako and Fenixx. Aimed at easing the work of accessibility experts and improving access to scholarly content for print-disabled readers.
Quantifiable outcome
- Thorium Reader reached 1 million downloads
- +3 more outcomes
Companies that use EDRLab
Customer profileNamed customers8 records
Segments6 records
Ideal customer profiles4 records
EDRLab technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability5 records
Feature5 records
EDRLab partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and major.
- PILEn (Partenariat Interprofessionnel du Livre et de l'Édition numérique)coreEDRLab and PILEn collaborate to support stakeholders across the book supply chain navigating digital transformation. Joint ThinkPub events at Brussels Book Fair 2026 on visual narration and digital publishing topics. Collaboration aims to ensure technical and economic imperatives of digital innovation strengthen editorial diversity.
- Readium FoundationcoreEDRLab is the main contributor of the Readium Project, developing and maintaining Readium Mobile (iOS/Android), Readium Desktop, and related open-source reading toolkit projects.
- World Wide Web Consortium (W3C)coreEDRLab is an active member of W3C, participating in EPUB maintenance, W3C Audiobooks creation, TDM Reservation Protocol development, and various publishing working groups and community groups.
- EBSCOmajorEBSCO adopted Readium LCP, marking a significant milestone in EDRLab's mission for open and accessible digital reading. EBSCO is a major library services provider.
- Casalini LibrimajorCasalini Libri is studying adoption of LCP DRM for its Torrossa digital library and bookstore platform. By 2026, they completed transition to Readium and LCP for EPUB, PDF, and audiobook distribution.
- Pika Edition (Hachette Group)corePika Edition partnered with EDRLab to create the first DiViNa compliant digital manga (Bravery). Pika is a manga publisher and subsidiary of Hachette Group.
- KwaliacoreTechnical partner that developed DiViNa Creator, the first authoring solution dedicated to the DiViNa format for digital comics/manga. Also developed open-source JavaScript DiViNa player added to Readium toolkit.
- French Publishers Association (SNE)majorEDRLab worked with SNE to finalize best practices for accessible EPUB ebooks. Collaboration on Qualebook quality reference framework for digital publishing. SNE Standards & Norms working group collaboration.
- KB National Library of the NetherlandscoreKB National Library develops Proeftuin LeesMakkelijk digital reading lab for low-literacy users. Reading components developed are open source for EDRLab to reuse and contribute to, focusing on multimodal reading experiences and accessibility.
- Fondazione LIAmajorItalian foundation promoting accessible digital reading, created by AIE (Italian Publishers Association) in collaboration with UICI. Cristina Mussinelli serves on EDRLab Board. Collaboration on accessibility standards and EPUB guidelines.
- DAISY ConsortiumcoreCollaboration on accessibility standards and tools. Daniel Weck works with both EDRLab and DAISY Consortium. NNELS (Canada) demonstrated Thorium + NVDA integration at Accessible Publishing Summit 2023.
- Rakuten KobomajorKobo Plus subscription service presented at Digital Publishing Summit 2026. CEO Michael Tamblyn keynotes ThinkPub conference. Kobo uses open standards approach to e-reading ecosystem.
Scale indicators7 records
Recent moves7 records
Expansion highlights6 records
EDRLab competitors and assessment
Company assessmentDirect peers
- DAISY Consortium: DAISY Consortium develops standards and tools for accessible digital publishing, with overlapping personnel (Daniel Weck works with both organizations). It is the primary accessibility-focused peer in digital reading and directly collaborates with EDRLab.
- Readium Foundation: The Readium Foundation is the open-source home of the Readium Project, of which EDRLab is the main contributor. Both organizations maintain EPUB 3 reading toolkits and share infrastructure, making them the most directly comparable open digital reading peers.
- OAPEN: OAPEN promotes open access academic books and uses Readium-based infrastructure. It shares EDRLab's mission of non-proprietary digital publishing and operates in adjacent open-content publishing infrastructure.
Broad incumbents
- OverDrive: OverDrive is a leading library ebook lending platform that integrates with EDRLab-compatible standards. It serves the same library customer segment and represents both a potential LCP integration partner and broad incumbent competitor.
- Internet Archive: Internet Archive operates a massive digital library with controlled digital lending, competing in the open-access ebook space. It is a broad incumbent that shares EDRLab's mission of universal access to digital books but at significantly larger scale.
- VitalSource Technologies: VitalSource is a major educational ebook and digital course materials platform. It competes in adjacent digital reading markets, particularly educational and library segments where EDRLab also operates.
- Adobe (Digital Editions / ADEPT DRM): Adobe's Digital Editions and ADEPT DRM are the dominant commercial DRM alternative to EDRLab's LCP. Adobe represents the proprietary incumbent against which LCP's vendor-neutral, ISO-standardized approach competes.
Emerging players
- Standard Ebooks: Standard Ebooks produces free, high-quality open-source ebook formatting. It shares EDRLab's open publishing philosophy and tooling ecosystem but focuses on ebook production rather than reading infrastructure.
- Project Gutenberg: Project Gutenberg distributes free public domain ebooks globally. It represents the open-content publishing philosophy that EDRLab's infrastructure supports, operating as an adjacent ecosystem participant.
Regional players
- Bibliotheca (Library ebook lending): Bibliotheca provides library self-service and RFID solutions including ebook lending infrastructure. It operates in the same library digital reading ecosystem as EDRLab, with complementary rather than directly competing offerings.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
EDRLab social profiles
Digital presenceEDRLab financial estimates
Financial estimateRevenue estimate
Valuation estimate
EDRLab leadership team
Management profileNumber of profiles
Profiles5 records
EDRLab funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
EDRLab M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about EDRLab
What does EDRLab do?
EDRLab develops and maintains open-source software and open standards for the digital publishing sector. Its core offerings are the Readium toolkits (open-source SDKs for building EPUB 3 reading apps on iOS, Android, web, and desktop), the Thorium family of free accessible reading applications (Thorium Reader, Thorium Mobile in beta, Thorium Web v1.0), and LCP (Licensed Content Protection), a vendor-neutral, ISO/IEC 23078-2-standardized DRM used by publishers, libraries, and e-reader manufacturers worldwide.
Is EDRLab a public or private company?
EDRLab is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was EDRLab founded?
EDRLab was founded in 2015. It employs 1 to 10 people.
Where is EDRLab based?
EDRLab is headquartered in Paris, France, in the Europe region.
How does EDRLab make money?
Four revenue lines are on record. Membership fees are the primary driver. The others are LCP licensing and royalties, grants and donations and event fees.
Who are EDRLab's main competitors?
Direct peers on record are DAISY Consortium, Readium Foundation and OAPEN. Broad incumbents are OverDrive, Internet Archive, VitalSource Technologies and Adobe (Digital Editions / ADEPT DRM). Emerging players are Standard Ebooks and Project Gutenberg. Bibliotheca (Library ebook lending) is listed as a regional player.
Does EDRLab have an API?
No public API is recorded for EDRLab.
What industry is EDRLab in?
EDRLab's product category is Digital Publishing Software. Its primary akta.pro industry code is EDAGAJAM, OER Authoring, Remixing & Publishing Tools/Platforms, with a secondary code of EDAFAHAH, Standards, Packaging & Interoperability Tools (SCORM/xAPI/cmi5/LTI). Its NAICS code is 5132 and its SIC code is 7372.