MPen

How to install an extension Open in Chrome Web Store

CRX ID

cghmnieebgefhenggkhbdbhgcjlegkkc

Status

Extension status: Featured
Live on Store

Description from extension meta

For example. To mark important sentence. To Write operations during Screencast. MPen is simple graffiti tool.

Image from store

Description from store

Translucent color
You can use it like a highlighter with a translucent color compatible pen.

Undo/Redo
MPen keeps track of 8 undo levels. Usability like a desktop application.

Multi-language
UI supports English and Japanese.

For Windows 8.1/10 users:
There is a problem that you can not click on the touchpad while pressing the letter key. Improved by setting "touchpad sensitivity" of touchpad to "maximum sensitivity" in your Windows settings.
For details, please refer to Microsoft Support. (https://support.microsoft.com/en-us/help/2907018/button-clicks-for-internal-touchpads-and-pointing-sticks-are-not-respo)

# Keyboard Shortcuts

[`] fold/unfold panel
[1] pen
[2] line
[3] rect
[4] ellipse
[5] text
[6] eraser
[7] hand
[8] pointer

[-] clear
[=] toggle option panel
[Backspace] minimize/restore toolbar

[q] pen (pressing)
[w] line (pressing)
[e] rect (pressing)
[r] ellipse (pressing)
[t] text (pressing)
[y] eraser (pressing)
[u] hand (pressing)
[i] pointer (pressing)

[Ctrl]+[z] undo
[Ctrl]+[y] redo
[Ctrl]+[Backspace] exit

[Esc] abort
[`] fold
[Alt] show/hide shortcut key

[Ctrl]+[Alt]+[d] on/off debug logging

# Release Note

Version 0.3.1
- Updated the link to the homepage.

Version 0.3.0
- Migrate to Manifest V3
- Improved rendering quality on HiDPI displays
- Improved memory efficiency
- Error messages are now displayed in notifications ("Notifications" Permission)

Version 0.2.2, 0.2.3
- Release canceled

Version 0.2.1
- Remove unused permission.

Version 0.2.0
- Added Rect tool.
- Added Ellipse tool.
- You can draw vertical/horizontal lines by holding down the Shift key and dragging with Line tool.
- Changed keyboard shortcuts
- Bug Fixes & Other Misc. Changes

Version 0.1.7
- Added Quick Tool feature. You can temporarily use the tool while pressing [QWERTY] key.

Version 0.1.6
- Bug fixes.

Version 0.1.5
- Added Text tool.
- Option panel can now move to left/right.
- You can now open a blank/ruled-line/grid page from the icon menu.

Version 0.1.4
- Added Undo/Redo functions.
- Added Abort command to Eraser.

Version 0.1.3
- Fixed touchscreen issue.

Version 0.1.2
- Added Line tool.
- Added Abort command to Pen and Line. ([ESC] key)

Version 0.1.1
- Add Contextual mouse pointer.

Version 0.1.0
- Initial release.

Latest reviews

Emirhan Yücel 2025-09-07: it's the best app ever but somehow it doesnt work on youtube since these few days but other sites its fine. i will give 5 stars when it gets fixed
Alice Diamond 2025-03-24: its very useful but somehow it just stopped working on the last few days? pls fix it asap thx.
Kartik Nagrale 2024-07-04: worked great for me
BeastieGetRekt 2024-05-01: it stopped working for a few days, I would like you to fix this problem ASAP please
Aditya Raghav 2023-11-18: Best one for me UI is clean and have keyboard shortcuts which makes my work so fast as i spend lot of time solving codechef probelm its helps me to visualise the problem on the website itself recomded for every one specially students
minchul Noh 2022-12-11: good
minchul Noh 2022-12-11: good
Abel Paredes Chuna 2022-06-18: Muy buena. Tiene todas las funciones que necesitas de forma elegante y han solucionado sus errores. Solo que no funciona con documentos PDF. Muy buena herramienta.
Long Thành 2022-04-22: Heplfull and thank u
Long Thành 2022-04-22: Heplfull and thank u
David Froz 2022-04-19: o melhor que já achei nessa funcionalidade. Com muitas teclas de atalho e uma visão bem limpa do monitor. MUITO BOM!!!
alekss 2022-04-04: Simple Clean and Easy to use 👍
alekss 2022-04-04: Simple Clean and Easy to use 👍
Mariana Silva 2022-02-20: Maravilhosa, interface limpa, muito útil. O unico defeito é que não tem como salvar, recarregou a pág sem querer perdeu tudo
Aneeq raif 2021-08-24: IT IS SO GOOD ITS SO EASY FOR ME TO TEACH MY LIL BROTHER WITH A ONLINE BOOK AND UNDERLINE IT SO GOOOOOOOOOOOOOOOOOOOOOOD
Aneeq raif 2021-08-24: IT IS SO GOOD ITS SO EASY FOR ME TO TEACH MY LIL BROTHER WITH A ONLINE BOOK AND UNDERLINE IT SO GOOOOOOOOOOOOOOOOOOOOOOD
Anna Sherriff 2021-07-05: I enjoy using this for school, especially showing working out in maths. Works really well with the chromebook I have and I prefer it to other alternatives available. Great!
Anna Sherriff 2021-07-05: I enjoy using this for school, especially showing working out in maths. Works really well with the chromebook I have and I prefer it to other alternatives available. Great!
Aaditya Chavan 2021-04-09: Worked fine to mark or underline text in webpages.
Aaditya Chavan 2021-04-09: Worked fine to mark or underline text in webpages.
T K 2020-11-25: ローカルのhtmlファイルではExtensions are not available on this page.・・・ Extension manifest must request permission to access this host.となります。
Jaycephus 2020-08-29: poor feature-set
Jaycephus 2020-08-29: poor feature-set
Renan Ducat 2020-08-29: Estava procurando uma funcionalidade dessa faz muito tempo! Ótimo demais!
Artlan a 2020-06-30: GOOD BUT HOW TO SAVE THAT
Artlan a 2020-06-30: GOOD BUT HOW TO SAVE THAT
Andrés Ramos Flores 2019-11-21: Finally, there's loads of extensions like this one on the store, but none of them allows you to draw simple straight lines, except this one. Moreover, it works flawlessly. 10/10
Andrés Ramos Flores 2019-11-21: Finally, there's loads of extensions like this one on the store, but none of them allows you to draw simple straight lines, except this one. Moreover, it works flawlessly. 10/10
yasuyuki kishikawa 2019-11-19: 勉強用にとオンラインでの問題演習に使うため入れてみました。基本の機能は満足しているのですが、演習サイトでMPenを起動するとページのフォントが変わってしまいます。 MPen側の問題ではないのかもしれませんが、念のためご報告させていただきます
propeller 2019-07-11: 神アプリだねこれは使いやすいそして何よりもUI設計が神
Ye Shiwei 2019-05-15: Why there is no saving function？ Would like to pay for this function. Please make it, man
Mhmoud Ali 2019-03-28: Simply it is awesome extension for chrome , it worth more than 5 stars and the developer for this extension have good experience in UX .
Mhmoud Ali 2019-03-28: Simply it is awesome extension for chrome , it worth more than 5 stars and the developer for this extension have good experience in UX .
Eliza Perez 2019-02-14: Love it so far but is there a way to save my doodles ? TIA
Eliza Perez 2019-02-14: Love it so far but is there a way to save my doodles ? TIA
thanh phuong 2018-11-23: how can I save the change on my bookmark?
thanh phuong 2018-11-23: how can I save the change on my bookmark?
JACKY CHERNG 2018-11-12: can't save to html
JACKY CHERNG 2018-11-12: can't save to html
Werbethe Oliveira 2018-08-28: simplesmente perfeita! ótima.
Juan Manuel Sepúlveda Rojas 2018-07-01: It works excellent with the stylus of Samsung Chromebook pro.
Juan Manuel Sepúlveda Rojas 2018-07-01: It works excellent with the stylus of Samsung Chromebook pro.
Shiro Sakuma 2018-06-11: 結構使いやすい。文字を打てるのもうれしい。クローム内だけでしか使えないのがあれだけど、まあそういうもんだと思えば特に気にならない。
LR Xiao 2018-05-15: googd
Sâmmyo Freitas 2018-04-21: Supriu toda minha necessidade ... Fantastic!
Ania Lay 2018-04-13: It works great x
ania 2018-04-13: It works great x
jellifish 2017-10-19: This is a great extension that I use for 7th grade, but I wish that when you restarted a page that the writing wouldn't disappear.
jellifish 2017-10-19: This is a great extension that I use for 7th grade, but I wish that when you restarted a page that the writing wouldn't disappear.
Alejandro Arreola-Torres 2017-09-25: Works great on my 2-in-1. I would recommend it to anyone that likes to have a place to do quick calculations or scribbles.

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