Collaborative Editing

Sync-in integrates collaborative editors. Teams can view and edit documents in a web browser while Sync-in permissions remain in effect.

Collabora Online, OnlyOffice, Euro-Office, and draw.io can be enabled together or individually according to file formats and user needs.

When OnlyOffice is disabled, Euro-Office appears in its place if enabled.

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Access Requirements

• The administrator must deploy or configure the required editor services and enable their integration with Sync-in.
• Documents can be opened via the Open action in the File Manager.
• A modern web browser is required.

tip

When multiple office editors are enabled, document opening depends on the formats supported by each editor. If a format is supported by several editors, the user can choose which editor to use and, if desired, save this choice as the default preference (editable from their profile: Files).

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Collabora Online

	Collabora Online is primarily aimed at environments based on open standards and free software.

Particularly suited if:

• You want to rely on OpenDocument (ODF) formats as primary standards (.odt, .ods, .odp)
• You're looking for an open source solution, transparent and auditable, often required in public or regulated environments
• Data sovereignty and infrastructure control (self-hosting) are essential criteria
• You already use LibreOffice or want to ensure functional and ergonomic continuity with this environment
• Your documents are mostly simple to intermediate in terms of layout and advanced features

Collabora Online is a solid choice for organizations committed to an ODF, open source and sustainable approach.

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OnlyOffice & Euro-Office

	OnlyOffice and Euro-Office are primarily aimed at uses oriented towards Microsoft Office formats. Euro-Office is a fork of OnlyOffice.

Recommended if:

• Your users work primarily with .docx, .xlsx, .pptx files
• You're looking for maximum compatibility with Microsoft Office, including for complex documents (styles, tables, charts, simple macros)
• You want immediate adoption through an interface similar to Microsoft Office
• Your teams come from Microsoft environments and want to minimize habit changes
• You want to deploy OnlyOffice or its Euro-Office fork without changing the Sync-in file collaboration layer

OnlyOffice and Euro-Office are particularly suited for organizations that want a simple transition from Microsoft Office, without compromising the user experience.

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draw.io

draw.io is intended for creating and editing diagrams directly in Sync-in:

• .drawio and .dwb are native formats that can be viewed and edited directly.
• .vsdx and .gliffy can be opened without converting them in advance.
• When changes to an imported .vsdx or .gliffy file are saved, Sync-in asks for a file name and creates a new .drawio file in the same directory. The source file remains unchanged.
• Read-only users can view supported diagrams without being prompted to convert them.

Native diagrams use an exclusive Sync-in lock while they are being edited. Imported formats do not lock the source because changes can only be saved as a new .drawio file.

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Office editor comparison

Criteria	Collabora Online	OnlyOffice & Euro-Office
🧩 Technology	Based on LibreOffice	OnlyOffice-based office suite; Euro-Office is a fork of OnlyOffice
🌍 Philosophy	Open source (AGPL / MPL depending on editions)	Open-core/fork-based deployments, with features depending on the edition
📄 Native formats	OpenDocument (.odt, .ods, .odp)	Microsoft Office (.docx, .xlsx, .pptx)
📂 Supported formats*	.odt, .ods, .odp, .docx, .xlsx, .pptx, .rtf, .txt, .csv	.docx, .xlsx, .pptx, .odt, .ods, .odp, .rtf, .txt, .csv
📄 MS Office compatibility	Good, with possible limitations on complex documents	Excellent (native formats)
💬 Comments & annotations	Yes	Yes
🔐 Permission management	Inherited from Sync-in	Inherited from Sync-in
🔒 File locking	Managed by Sync-in	Managed by Sync-in
🌐 Client-side installation	None (web browser)	None (web browser)
🏢 Typical use cases	Public sector, data sovereignty, open standards	Microsoft Office–oriented environments
🎯 User experience	Similar to LibreOffice	Similar to Microsoft Office
📈 Learning curve	Moderate (LibreOffice UI)	Low (familiar MS Office UI)

*The supported formats listed above do not constitute an exhaustive list.