Skip to main content

Help us improve the Digital Marketplace - send your feedback

  1. Digital Marketplace
  2. Lot 2: Cloud software
  3. ONLYOFFICE Docs Developer Edition
Ascensio System SIA

ONLYOFFICE Docs Developer Edition

Secure collaborative online editors for for text documents, spreadsheets and presentations for integration in any web application written in any programming language. ONLYOFFICE is suitable for applications hosted in the cloud and on-premises and provides customization opportunities and White Label option.


  • set of professional document editing and formatting tools;
  • two co-editing modes (real-time and paragraph-locking)
  • real-time collaboration with comments, chat, change tracking and versions
  • advanced document permissions: commenting, reviewing, filling forms, custom filtering
  • form creation, filling, and export
  • third-party plugins: translation, thesaurus, bibliography, YouTube videos, etc
  • advanced security options: JWT, limited cache lifetime, E2E encryption
  • free desktop and mobile applications


  • perfect MS Office format compatibility
  • high-quality formatting
  • seamless real-time collaboration
  • intuitive tabbed interface
  • flawless display of content regardless of browser
  • full GDPR compliance
  • scalability
  • ready-to-use integration examples
  • regular updates and professional tech support


£4,765.14 a licence a year

Service documents

Request an accessible format
If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at Tell them what format you need. It will help if you say what assistive technology you use.


G-Cloud 13

Service ID

6 3 4 3 5 9 9 7 0 5 7 0 9 1 0


Ascensio System SIA Konstantin Maistrenko
Telephone: +44 20 3287 1086

Service scope

Software add-on or extension
What software services is the service an extension to
ONLYOFFICE Developer Edition can be integrated to any web application as a component to provide it with document editing and collaboration functionality and interface.
Cloud deployment model
  • Public cloud
  • Private cloud
  • Community cloud
  • Hybrid cloud
Service constraints
System requirements
  • Linux or Windows server (specs listed in the documentation)
  • PostgreSQL
  • RabbitMQ
  • NGINX (for Linux server)
  • Redis
  • Libstdc++6 (for Debian, Ubuntu and derivatives)
  • Erlang (for Windows server)

User support

Email or online ticketing support
Email or online ticketing
Support response times
Within 1-2 days, excluding weekends
User can manage status and priority of support tickets
Phone support
Web chat support
Web chat
Web chat support availability
9 to 5 (UK time), Monday to Friday
Web chat support accessibility standard
WCAG 2.1 AA or EN 301 549
Web chat accessibility testing
We haven't done any web chat testing with assistive technology users ourselves.
Onsite support
Support levels
Level 1: functionality consultation, minor bug reporting, general questions, pre-sale assistance
Level 2: major bugs that require specific knowledge and the assistance of the developer team

Both levels are included in the price of the solutions.
Support available to third parties

Onboarding and offboarding

Getting started
We provide technical assistance by our Professional Services team, private demonstrations on request, complete user documentation available in our Help Center, and a variety of resources including our blog, video tutorials and webinars (live and on-demand).
Service documentation
Documentation formats
End-of-contract data extraction
ONLYOFFICE doesn't store any personal or other data of the users except for the sales-related information about the client.

ONLYOFFICE Developer Edition doesn't store any user data itself, so there's no data to extract upon the end of the contract.
End-of-contract process
Upon the expiry of the license, the customer loses access to the updates and the full support service. However, ONLYOFFICE Developer Edition is provided with a lifetime license and the access to the solution remains full until the customer decides to erase the software from their infrastructure.

Using the service

Web browser interface
Supported browsers
  • Internet Explorer 11
  • Microsoft Edge
  • Firefox
  • Chrome
  • Safari
  • Opera
Application to install
Designed for use on mobile devices
Differences between the mobile and desktop service
The mobile web version supports almost all features of the online editors.
Service interface
User support accessibility
None or don’t know
Description of service interface
The service has a web interface that has a common design with most of the existing online office suites.

Element-wise, it is organized mostly through toolbars, buttons, fields, and texts.
Accessibility standards
None or don’t know
Description of accessibility
Of the EN 301 549 9 criteria for web, ONLYOFFICE supports the following items:
Non-text content
Use of color
Audio control
Images of text
Page titled
Link purpose
Multiple ways
Headings and labels
On focus
On input
Consistent navigation
Consistent identification
Error identification
Labels or instructions
Error suggestion
Error prevention
Name, role, value

All other criteria stated in the chapter is not applicable.
Accessibility testing
We have not done any testing with users of assistive technology.
What users can and can't do using the API
ONLYOFFICE Document Server API is used to let the developers integrate the ONLYOFFICE Document/Spreadsheet/Presentation Editors into their own web sites and setup and manage the editors.

More information:
API documentation
API documentation formats
  • Open API (also known as Swagger)
  • HTML
API sandbox or test environment
Customisation available
Description of customisation
Admins can customize the interface appearance and change the set of features and availability of the solution to users and groups.


Independence of resources
ONLYOFFICE Developer Edition is an on-premise integrated service. There are limitations on the simultaneous connections within one instance applied in each pricing plan, while the way the service is affected by the users of the customer infrastructure depends on the customer's own measures.
See the information about limitations in the pricing plans:


Service usage metrics
Metrics types
Admins can access the metrics about the number of connections (i.e. editing sessions): average, maximum and per hour/day/week/month.

This is possible through a special local resource of the installation.
Reporting types
API access


Supplier type
Not a reseller

Staff security

Staff security clearance
Staff screening not performed
Government security clearance
Up to Baseline Personnel Security Standard (BPSS)

Asset protection

Knowledge of data storage and processing locations
Datacentre security standards
Supplier-defined controls
Penetration testing frequency
Less than once a year
Penetration testing approach
Protecting data at rest
Other data at rest protection approach
Data protection at rest is defined by a customer's infrastructure
Data sanitisation process
Equipment disposal approach
A third-party destruction service

Data importing and exporting

Data export approach
ONLYOFFICE Developer Edition doesn't store any user data itself, so there's no data to export.
Data export formats
Other data export formats
No way to export any data (no data storage)
Data import formats
Other data import formats
No way to import any data (no data storage)

Data-in-transit protection

Data protection between buyer and supplier networks
Other protection between networks
ONLYOFFICE Developer Edition is completely independent.
Data protection within supplier network
Other protection within supplier network
Not applicable

Availability and resilience

Guaranteed availability
Data availability is defined by a customer's infrastructure
Approach to resilience
Resilience is defined by a customer's infrastructure
Outage reporting
ONLYOFFICE cannot detect, observe and report outages happening on customer's infrastructure because ONLYOFICE Developer Edition is independent.

Identity and authentication

User authentication needed
Access restrictions in management interfaces and support channels
Access can be restricted in the ways determined by a solution in which ONLYOFFICE Developer Edition is implemented.

The available selection of access control settings:
- Restriction of access to ONLYOFFICE editors;
- Restriction of certain operations with documents;
- JWT;
- Limitation of the cache lifetime.
Access restriction testing frequency
At least every 6 months
Management access authentication
Description of management access authentication
The authentication is performed on the side of the customer's solution.

Audit information for users

Access to user activity audit information
No audit information available
Access to supplier activity audit information
No audit information available
How long system logs are stored for

Standards and certifications

ISO/IEC 27001 certification
ISO 28000:2007 certification
CSA STAR certification
PCI certification
Cyber essentials
Cyber essentials plus
Other security certifications

Security governance

Named board-level person responsible for service security
Security governance certified
Security governance approach
ONLYOFFICE Developer Edition is completely independent bacause it is operated on the premises of the customer.

Regular security testing is made to spot possible vulnerabilities in the new releases and eliminate them within a reasonable time period.
Information security policies and processes
ONLYOFFICE sticks to data minimalism and transparency of all procedures with user data. ONLYOFFICE undergoes regular security testing and provides all necessary information about the status of possible vulnerabilities.

Data security at rest and in transit is warranted by a customer organization.

Operational security

Configuration and change management standard
Supplier-defined controls
Configuration and change management approach
We run mandatory tests in-house by a QA Department when preparing each version of the software/component to the final release. Upon discovery of any possible bug, we assure the timely fix. This approach includes both proactive and reactive responses.
Vulnerability management type
Vulnerability management approach
We assess potential threats via a variety of in-house testing activities. The patches are released within a period from 1 working day to one month, depending on the nature of the discovered issues. This class of issues is given a top priority under any circumstances.

The information about potential threats is obtained from both the known practice and routine testing procedures.
Protective monitoring type
Protective monitoring approach
We offer convenient ways of reporting any potential compromises to assure that the issue is discovered and tackled in a timely manner. ONLYOFFICE does not have access to the activity on the instances, so there is no way to audit the potential compromises directly. We assure immediate response to the issues via communicating through the problem with the technical team of each customer.
Incident management type
Incident management approach
The existing support system is the main means of directly reporting the incidents to the ONLYOFFICE Professional Services team.

ONLYOFFICE has a pre-defined process for dealing with common issues and the events related to the possible expected behavior.

Secure development

Approach to secure software development best practice
Supplier-defined process

Public sector networks

Connection to public sector networks

Social Value



ONLYOFFICE offers cloud solutions for free for non-profit organizations and schools in its progam for supporting education and socially important initiatives.


£4,765.14 a licence a year
Discount for educational organisations
Free trial available
Description of free trial
The free 30-day trial includes:
On-premise installation of the software with the ability to integrate and test it;
Complete functionality;
Limitation by 20 users.
Link to free trial

Service documents

Request an accessible format
If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at Tell them what format you need. It will help if you say what assistive technology you use.