Run a live countdown timer in OBS for subathons, donation marathons, membership marathons and other long streams where viewer support adds time.

Choose which events add time to the timer, then set how many seconds each sub, gift, tip, donation or reward is worth.
Add time for Twitch subs and resubs, YouTube members, Kick subs, Ko-fi subscriptions and Patreon memberships.
Reward bigger support by adding time for gifted subs, gifted memberships, TikTok gifts and YouTube gifts.
Let Twitch bits, channel point redeems and reward redemptions add time to the timer.
Add time from StreamElements tips, Streamlabs donations, Ko-fi donations and other supported donation events.
Keep the OBS widget clean for viewers and use Synchra controls to manage the timer behind the scenes.
Open the Streamathon controls when you go live, then start, pause or resume the timer whenever the stream needs it.
Add seconds or remove seconds yourself when you need to fix the timer or make a manual adjustment on stream.
Restart the countdown with the current setup or reset it when you are preparing for another stream.
Use an optional end time when you want a hard limit so viewer activity cannot push the stream past a specific date and time.
Show or hide the timer title and status text, such as paused or ended, so the widget stays clean in your overlay.
Change colors, font, size, padding, border, rounded corners and custom CSS so the timer matches your stream.
The Streamathon Widget is an OBS browser source that shows a live countdown timer. It is useful for subathons, donation marathons, membership marathons and streams where viewer support adds time.
Yes. You choose which events add time and how many seconds each one adds.
Synchra Streamathon can use activity from Twitch, YouTube, Kick, TikTok, StreamElements, Streamlabs, Ko-fi and Patreon when those integrations are connected.
Yes. If tips, donations or paid chat events come in with different currencies, Synchra converts them into the widget currency before adding time.
Yes. You can start, pause, resume, restart, reset, add time and remove time from the Streamathon controls.
Yes. Set an optional end time if you want the timer to stop accepting added time past a specific date and time.
Yes. You can change colors, font, size, padding, border, rounded corners and custom CSS.
Create a Streamathon widget in Synchra, copy the widget URL and add it to OBS as a browser source.
Create the widget, copy the URL into OBS, open the controls and start the countdown when your stream is ready.
Create a Streamathon widget