A lightweightonline doc

20x lighter and faster.
Cloud sync, Markdown, Local + Cloud dual storage.

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Work

Write plans, share docsMake daily work easier.

Personal

Take notes, organize ideasKeep everything clear.

Team

Edit together, share with easeTeamwork made simple.

Focus on writing

A clean interface.

Focus mode, give your full attention to the content.

All the tools you need

Images, attachments, formulas, tables,

Rich text and paragraph styles.

Real-time sync

Works on phones, tablets, and computers.

Same documentCloud document

Real-time sync

Phone

Tablet

Computer

Load faster. Edit faster

Network transfer

30x improvement

KKDoc700KB

Competitor23MB

Initial load requests

20x improvement

KKDoc39 requests

Competitor793 requests

Page memory usage

18x improvement

KKDocAbout 20MB

CompetitorAbout 360MB

Results come from first-load tests on the same device and document. Actual results may vary by environment.

View the full test method and comparison

Test item	Measurement	KKDoc	Comparable product
Network transfer	Network：Transferred	About 0.7MB	About 23MB
Initial load requests	Network：Requests	39 requests	793 requests
JavaScript heap memory	Performance Monitor：JavaScript heap size	About 20MB	About 360MB

Test details

Test date:: July 12, 2026
Device:: 2021 MacBook Pro, Apple M1 Pro, 16GB memory
Operating system:: macOS Tahoe 26.0.1
Browser:: Chrome 150.0.7871.100 (arm64)
Test document:: Both products use exactly the same content from Typhoon Protection Guide

Test method

Open both products on the same device and browser.
Clear the site cache, then record network requests from the initial load.
Use Transferred in the Network panel to measure network transfer.
After the document stabilizes, record JavaScript heap size in Performance Monitor.
Disable browser extensions during testing.
Run each test five times and use the median result.
Enable Disable cachein DevTools.
Stay signed in to both products.

Data comes from Chrome DevTools and represents only the device, browser version, document, and environment described above. Actual results may vary.

Edit together

Edit the same doc and see changes right away.

Shared document

3 people editing

Share with one link

Anyone can view the doc without signing up.

View a shared doc

You control access

Choose view-only or editing access.

Document accessControlled by the owner

View only

Can edit

Manage access

AI for writing

AI understands the full document and suggest edits.

Review each change to accept or reject.

Business-grade AI and privacy protection

More helpful features

Import and export

Import or export by folderMarkdown, Image, PDF, HTML.

Offline editing

Keep writing offlineAll changes syncs when back online.

File management

Use folders and filesDrag to sort or move.

We put privacy first

No scan, review, or filter non-public documents. We take the privacy seriously.

Learn how we protect your privacy