Watchmarker for Youtube

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Automatically mark videos on Youtube that you have already watched.

Latest reviews

• (2025-07-12) Anthony Tsoumas: For the love of god, someone message him on GitHub (i don't have an account)
• (2025-07-11) Skrzatu Przydomowy: Awesome extension! Turned off because it's no longer supported. Please, help. :(
• (2025-07-11) Geo hajime: This extension was turned off because it is no longer supported, bro help google wants me to delete it !
• (2025-07-04) MiKK3: pure gold
• (2025-06-05) Scott Dawson: Since the Watchmarker is seemingly no more, how do I extract the information in the .database file, and import it to other "watched" type add-ons? For example, the "YouTube Watched Marker" has an option to import a txt file, but can't import the .database file. This was an indispensable add-on for me. Now looking at other options.
• (2025-05-19) Martin Wagoner: I really like this extension, and think everyone should download it. The only problem I've noticed is that sometimes the synchronization doesn't get the watch order correct. For example, one Let's Play that I have is shown as having been watched in the order of episode 60, followed by episodes 59, 63, 62, 61. It's not a big issue, especially considering it's listed correctly on the YouTube history page, but it does make me a little annoyed when stuff is out of order like that. And there is no way to delete multiple entries at once, only individually. Also, there is no sync function if you watch YouTube across multiple computers, work and home for example, so you would need to manually export and import each time. This is not feasible as someone that moves between multiple profiles on one device, as I would be exporting and importing an absurd amount. Maybe adding the ability to manually move the videos around after they've been logged to fix this. I pay $30 a year for PocketTube's premium features, which includes a cloud backup and sync function. I'd be willing to throw a few dollars each year for the same functionality for Watchmarker. Still download it, and you won't regret it.
• (2025-04-21) Mark Degroot: Yet another extension required to fix youtube... Default settings are a bit weird but after some changes its a great extension.
• (2025-04-13) Kasun: was good , broken now
• (2025-03-06) Skyeanna Malito: This is the most useful extension I have. Without it, I would get so annoyed, trying to remember what I have and haven't watched. I know there are others out there, but this one does exactly what I want it to.
• (2025-03-04) Or Malka: This extension has been so useful to me over the years, I am begging you not to let it get shut down due to technicalities 🙏. I'm literally considering learning JS just to help solve the whatever issue is making chrome block it
• (2025-03-03) RISHIT PANDEY: not working now, it was so gud
• (2025-02-14) Tom: I love this extension and I can confidently say it is one of my favourite extensions EVER. I just came to say, I would pay to keep this extension running I like it that much. Big thanks to the developer for keeping it running for so long, and I've only rarely had problems with it, and those problems got fixed lightning fast. My watched video database is now around 34000+ videos stored/logged, I've used it for THAT long. Please please, don't allow: "This extension may soon no longer be supported because it doesn't follow best practices for Chrome extensions." To be the end of this! Thank you =)
• (2025-02-11) Kuldeep singh: " 𝙋𝙇𝙀𝘼𝙎𝙀 be considerate when leaving a review, this is a free extension that 𝙄 𝙞𝙣𝙫𝙚𝙨𝙩 𝙢𝙮 𝙨𝙥𝙖𝙧𝙚 𝙩𝙞𝙢𝙚 𝙞𝙣. If there is something that does not work then 𝙋𝙇𝙀𝘼𝙎𝙀 file an issue on Github where it is easier for me to track." I have highlighted the reasons which forced me to write a review for your amazing Extension.- 5 stars for you sir
• (2025-02-06) anti polarização: Thank you for fixing youtube for us! You sir are a hero, cheers mate
• (2025-02-02) Jeff Valcher: Super useful app. Thanks for putting it up for the rest of us!
• (2025-01-18) Christopher McEwen: Amazing, super useful extension. I hope it gets updated to support Manifest V3.
• (2025-01-15) Belogicless: actually amazing.
• (2025-01-06) Alex Moak: Doesn't work anymore.
• (2025-01-05) labros labrou: it doesnt work on short videos anymore.
• (2024-12-30) Anabiz: excellent extension, works much better than the basic functionality of YouTube
• (2024-12-29) davidguy207: Somehow does watched videos better than youtube.
• (2024-12-21) Mathias: A-m-a-zing. Greyed out thumbnails. Very easy to spot what's already been viewed. Really nice.
• (2024-12-16) Eratas: A must have, hopes it get updated for manifest v3
• (2024-12-14) Alex Bobrov: Works nicely.
• (2024-12-02) Mike Bilel: was so good when it worked now all of a sudden it doesn't work might be manifest v3 so annoying I hate how chrome updates are constantly breaking old extensions that were super useful!
• (2024-11-15) Martin Wagoner: I really like this extension, and think everyone should download it. The only problem I've noticed is that sometimes the synchronization doesn't get the watch order correct. For example, one Let's Play that I have is shown as having been watched in the order of episode 60, followed by episodes 59, 63, 62, 61. It's not a big issue, especially considering it's listed correctly on the YouTube history page, but it does make me a little annoyed when stuff is out of order like that. And there is no way to delete multiple entries at once, only individually. Maybe adding the ability to manually move the videos around after they've been logged to fix this. Still download it, and you won't regret it.
• (2024-09-12) Kai: Sometime early September, shorts no longer have the WATCHED tag or the greying of the thumbnail. really annoying. A channel shorts page I still had open still has the WATCHED tags with dates and greyed thumbnails. I watched a short I did not before and it was updated in this old browser tab but not a fresh one.
• (2024-08-23) Zdam Ju: Still works! Really useful
• (2024-08-02) Christian S: I love this and am leaving 5 stars, but the new layout seems to interfere with the extension so Ive had to disable it
• (2024-07-21) Sam Durk: Absolutely brilliant, can't recommend enough.
• (2024-07-17) Nav S.: I used to enjoy this extension, but when the new YouTube layout was launched in June 2024, the extension began to interfere with the page layout, causing it to hide all the information about the currently playing video. I would appreciate it if you could update the extension to restore its usefulness.
• (2024-06-29) Olexandr Vynogradov: This functionality should've been already implemented in the YouTube Website!
• (2024-06-24) Kenton Flaig: i would have given it a 5 but today, from what I can tell, this extension prevents YouTube the page that used to load when playing a video from loading properly. The video plays but none of the infromation about the channel shows us nor does the comment section of the vidI
• (2024-06-20) Lénaïc Jaouen: Was working perfectly until a few weeks ago Now I'm losing my history every few days and have to reimport everything again An automatic backup option would be nice PS: 1 star but I still think it's worth 5 stars... when it works
• (2024-06-16) Lourens van Niekerk: Could there be an additional option just to hide it completely instead of greying it out?
• (2024-06-06) Human 42: Working on youtube homepage: https://www.youtube.com/feed/subscriptions But not working on youtube shorts page. https://www.youtube.com/feed/subscriptions/shorts shorts are not darkened/marked as watched. [Sorry for the 1 star, had to do it so that this issue comes into notice. Will change it back to 5 star when this issue is fixed. :)]
• (2024-06-04) Prashant Negi: is it just me or are the shorts not getting marked anymore ? was working fine a few days ago.
• (2024-05-31) Robyn “Midoki” Rivera: If I could get a setting which would allow the video to be marked as watched after it's been watched for a certain amount of time it would make my life easier. Sometimes I queue up a few videos but am unable to get to them all and this marks them all as watched just for having opened the video even if I never actually watched it.
• (2024-05-13) Andrew Collet: This extension has been great, although it's been more buggy as of late. There's been moments of the wrong videos showing as watched and more frequently, not marking any videos as watched. I've had to uninstall and reinstall the extension a few different times recently to get it back to working. But because it's been an overall positive experience until recently, I give it 4 stars.
• (2024-04-21) Chris Benoit: Love this extension to bits but currently it breaks the new youtube ui making none of the ui besides the video itself load. Took me forever to figure out which extension was doing it.
• (2024-03-18) Anna Lippert: Total malfunction ― showing as viewed videos that weren't and that I wouldn't watch. (I won't uninstall the extension for now, simply disabling it, waiting for it to be fixed in the next few days.)
• (2024-03-18) themaster1124: Edit 3/17 24 It Doen't Work Again! 😠
• (2024-02-29) Matthew Correia: Works great! I love this extension, but I wish it would automatically sync watched videos from YouTube periodically. Sometimes I watch YouTube on other devices, but those videos don't get recorded with this extension -- I have to open the extension options and click the "Synchronize" button... why can't it just do this automatically once a day or week or so, so I don't need to think about it?
• (2024-02-28) Rob Relf: I watch a LOT of YouTube and this extension makes life so much easier in avoiding rewatching videos. I have a question and I can't find a way to contact the developer: sometimes when I open a page (mainly my "home" page in YT, it will show that I've watched a video when I know I haven't, not even hovered over it. Usually if I refresh the web page it will correct the problem and I'm mainly just curious why I'm seeing this.
• (2024-02-06) Common Wombat: Great extension, but please add an optiopn to the settings to choose date style, with american and normal options. (15.04.1994/ 04.15.1994)
• (2023-12-03) Мамед Индус: Maybe this is the coolest extension ever. But I really miss the manual action. Like in extension PocketTube. There is an eye-shaped button with which you can mark the videos you have watched. This extension is way better than PocketTube, but doesn't have this feature, and for me this is the most important as Youtube marks videos which you even just taped I mean just accidentally pressed the button. And this confuse me. Please add this feature :) Like in PocketTube or checkbox next to youtube player buttons. I love this extension
• (2023-11-12) Tom Plessers: I use a lot of chrome extensions and have spent a lot of time finding the best ones for my purposes. I have to say, this is one of the most valuable extensions I have installed, by a large margin. Extremely well-made (it just always works), easy to use (it's just fully automatic) and mostly bug-free since I only had one bug over the more than two years of using it and the dev immediately fixed it. Incredibly valuable extension. I would pay money for this, without a second thought, just to let the developer know how much his work is appreciated. Install it, you won't disappointed!
• (2023-11-04) Enas Agnwstos: This is an extension from OUTER SPACE!! A STUNNING example of human ingenuity!!! So easy to handle , so extremely configurable : HIGHLY recommended!
• (2023-11-04) Enas Agnwstos: This is an extension from OUTER SPACE!! A STUNNING example of human ingenuity!!! So easy to handle , so extremely configurable : HIGHLY recommended!
• (2023-10-12) 김희중 (SCREAM): you are the best developer thank you