INSIGHT · SYNAP EDITOR

Office-Grade Precision,
Right in the Browser
The Power-User Side of Synap Editor

Synap Editor is a browser-based rich text editor that natively supports MS Office (Word, Excel, PowerPoint) and ODT import and export, Excel-compatible tables with 290+ functions, Office-grade shape and layer editing, restricted partial editing, and built-in real-time collaboration, capabilities that TinyMCE and CKEditor typically require plugins or separate paid services to match.

Easy to use and precise to control usually pull in opposite directions. Synap Editor was built to do both at once.

Tools that are easy for beginners tend to give up fine-grained control, and tools with fine-grained control tend to be hard to learn. Synap Editor rotates a single shape in precise 15-degree increments, runs real Excel functions inside a table, and locks editing down to a single region of a document, all without leaving the browser or installing anything. Here's what that actually looks like.

01. Precise Document Control, Structured Formatting

Approval workflows and standardized business forms often need to lock down everything except one editable field. Synap Editor's restricted partial editing lets an admin limit editing to a designated area only, so teams can run their workflow without worrying about formatting breaking or the wrong section getting edited.

Bullets and numbering get the same level of control down to the smallest detail. Mix circular, square, and custom-character bullets freely, and multi-level numbering, 1 → 1.1 → 1.1.1, holds its structure even four levels deep.

Restricted partial editing

Multi-level bullets

4+ level numbering

02. Tables That Work Like Excel, and Then Some

This goes well beyond styling cells. Type = into a cell and the table switches into function-input mode, giving you access to 290+ Excel functions right there in the document. Table style presets let you swap colors and borders in seconds.

• Modern table UI: add, delete, and merge rows or columns with ease

• Excel-style function input: type = to enter function mode, with 290+ functions supported

• Table style presets for instant formatting

It also supports conditional formatting, just like Excel. Set a rule on a range and formatting, color, bold, background fill, applies automatically based on each cell's value. Numbers, text, dates, and formulas are all supported, so key metrics jump out immediately in sales dashboards or inventory sheets where the data keeps changing.

03. Office-Grade Shape Editing

The shape library spans seven categories, lines, basic shapes, equation shapes, stars and banners, block arrows, flowcharts, and callouts, adding up to more than 160 shapes. Whatever you reach for while sketching out a diagram, odds are it's already in there.

Once a shape is on the canvas, rotation and adjustment handles let you fine-tune it precisely. Hold Shift while rotating and it snaps to clean 15-degree increments, and shapes joined by a connector line stay linked even when you move or resize either end, so a flowchart or org chart doesn't need its arrows redrawn every time the layout shifts.

160+ shape library

Snap-to-15° rotation

Precision adjustment handles

Connectors stay linked

Layer editing and free placement

Shapes and images can toggle "treat as character" on or off, just like Word. Turn it on and the object moves with the surrounding text as part of the flow; turn it off and it becomes a floating layer you can place anywhere on the page. Floating layers let you set width, height, border, and background directly, and when layers overlap you can send any of them to the front or back. It's especially useful for cover pages or infographics that need a freer layout than a normal text flow allows.

Treat as character toggle

Freeform floating layers

Front/back layer ordering

04. Where Synap Editor Pulls Away from TinyMCE and CKEditor: Collaboration and Security Built In

General-purpose rich text editors are strong at content editing itself, but things get harder once several people need to work on the same document and it has to move through an approval process. Synap Editor bundles editing, collaboration, and security into a single API instead of leaving those as separate problems to solve.

Co-editing isn't a yes/no feature, it's a question of how well it holds up

Real-time collaboration is often something you bolt on through a separate paid cloud service or build yourself. With Synap Editor, one API lets multiple users edit the same document at once, restores any of the last 100 versions with a single click, and includes a full comment thread with resolve and reopen built in.

Control and security built for approval documents

Beyond restricting script and iframe tags to prevent XSS, Synap Editor detects personal data, phone numbers, national ID numbers, and the like using pattern matching, so it can catch that content before it's ever published. Paired with restricted partial editing from the section above, this meets the level of document control public institutions and enterprise approval systems require, without any extra development work.

Synap Editor vs. TinyMCE- and CKEditor-class editors

* Based on Synap Editor's own internal comparison. ● supported · △ limited support (custom configuration or plugin required) · × not supported. Competitor capabilities can vary by version and plugin setup.

Related reading

→ Importing Real Office Documents Into a Web Editor
→ Exporting Back to Real Office Files
→ What Actually Breaks When You Drop a Real Document Into a Web Editor

FAQ

How is Synap Editor different from TinyMCE and CKEditor?

Synap Editor natively supports MS Office and ODT import/export, Excel-compatible table functions, Office-grade shape and layer editing, restricted partial editing, and real-time collaboration through a single built-in API. TinyMCE and CKEditor generally require third-party plugins or separate paid services to cover the same ground.

Does Synap Editor support real Excel functions inside tables?

Yes. Typing = into a table cell switches it into function-input mode, with 290+ Excel functions and conditional formatting based on cell values.

Can editing be restricted to a specific part of a document?

Yes. Restricted partial editing lets an administrator limit editing to a designated area only, commonly used for approval workflows and standardized business forms.

Does Synap Editor include real-time collaboration?

Yes, built into the core API. Multiple users can co-edit the same document at once, restore any of the last 100 versions, and use comments with resolve and reopen actions, without a separate collaboration service.

Precision Is What Earns Trust

In real document work, there's a big gap between "close enough" and "exactly right." Synap Editor builds this level of precision control on top of an already easy-to-use editor, so power users get what they need without ever leaving the browser.

Try the shape editing demo → Try the table editing demo → Try the collaboration demo →