OOONA’s SCC Renderer is a free browser-based tool for decoding and testing Scenarist Closed Caption (SCC) files. It lets you preview how captions will render in a TV or web player before they are embedded in video, helping you identify formatting or compatibility issues early in the workflow.

You can check it out in our Timed Text Lab | OOONA.

OOONA’s VTT Renderer is a free browser-based tool for testing and editing Web Video Text Tracks (WebVTT) files. It allows you to instantly preview your subtitles, edit your file’s content and modify its syntax, and preview all changes in the built-in player instantly. You can download the updated file when you’re done.

You can check it out in our Timed Text Lab | OOONA.

OOONA’s Timecode Calculator is a free online tool for anyone who works with video and subtitles in broadcast, post-production or localization. It lets you instantly convert between time representations, perform timecode arithmetic, and verify values — all without leaving your browser or reaching for a spreadsheet.

You can check it out in our Timed Text Lab | OOONA.

We now have smart prompts encouraging use of keyboard shortcuts when users repeatedly trigger actions via mouse or menus, with an optional shortcut assignment dialog after repeated use.

You can opt-out of this suggestions anytime, by checking the “Don’t show such suggestions again”.

Please note you can also opt-out of these suggestions from User configuration:

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Save time on manual spotting with this Generate Empty Subtitles from Speech feature.
It automatically detects speech in your media and creates empty boxes with timecodes, giving you a ready-made framework for subtitling or script preparation.

Powered by a lightweight voice detection model, the feature runs entirely in your browser, so your audio and video never leave your device. It's the perfect productivity boost for professionals who prefer more control over spotting but want to eliminate the tedious task of timing entirely from scratch.
(NOTE: The feature will only run on a local media file)

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You can now register a passkey to sign in to OOONA Toolkit, a faster, more secure alternative to traditional passwords.

In the OOONA Toolkit Integration with OOONA Manager, tasks could not be opened by other users while a resource was actively working on them.

Now, you open a task even while someone else is actively working on it. The project will load in read-only mode, with a quick notice explaining the situation. This makes it easier to check progress without interrupting ongoing work or risking conflicts.

In the OOONA Toolkit Integration with OOONA Manager, when opening tasks in the Multilingual QC, the Master templates associated with those tasks could not be opened in the tool.
Now, we have added the ability to extract and view a master template from ReviewPro projects directly within the Multilingual QC.

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We have now added support for customizable colors that can be rendered on VTT exports.

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We have added the ‘d_drop’ style to the IMSC-Rosetta export so that the drop-shadow of a subtitle is also exported.

We have added a hotkey: Toggle music notes.
Using it will add a music note with a space at the beginning and end of the subtitle or selection of subtitles.

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We have added a new hotkey: Fit subtitle to one row.

Use the new hotkey to fit all text into one line, as long as it doesn't exceed the maximum line length set in Project settings.

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A new setting is now available under Language configuration in OOONA Manager:

Override text lines per subtitle

When enabled, you can define the maximum number of lines per subtitle for a specific language.

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We have added a new field under Language configuration in OOONA Manager:

Custom language code

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To use this newly added field in the file name of automatically exported files, select the Custom language code from language configuration under the File naming configuration.

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Until now, the Find and Replace feature would only work when there was a target subtitle to jump to.
Now, the OOONA Toolkit scrolls to the located subtitle even when there is no target to activate, so results in source or master are always brought into view.

The .srt extension is now supported in the Document preview feature.

OOONA Convert now supports image export for Final Cut Pro XML projects in Vertical HD resolution (1080×1920px, 9×16 aspect ratio), including correct rendering of vertically oriented Japanese text.

We have added the option to flag remaining Validation errors on export.

To read more about these improvements, read our help article about the Validation tab in Project settings.