Upcoming · After Effects
Source Window
AENural’s main product for After Effects. Source Window sits at the heart of AENural, alongside a collection of focused online tools for everyday editing tasks.
Meet Source WindowBuilt for editors & motion designers
Finally, someone heard editors’ pain
and built a toolkit.
AENural builds focused tools that take the friction out of editing in After Effects — plus free online utilities anyone can use. One home for all of it.
Browser-first caption editing Styled video + SRT / VTT
Working in After Effects? Meet Source Window ↗
Free · Ready to use
Free online tools
No install needed. Edit subtitles, fix their timing, merge and split SRT files, or convert SRT to VTT.
- Edit SRT and VTT subtitles
- Merge, split, retime & convert
- No signup to use
Free tools for editors
Quick, no-install utilities. Use them free — no account required.
Subtitle Editor
Edit SRT or VTT subtitle text and timing, with undo and redo.
FREESRT Timing Adjuster
Move all SRT subtitle timestamps earlier or later.
FREESRT to VTT Converter
Convert SRT subtitles to VTT, keeping their text and timing.
FREESRT Merger
Combine up to 10 SRT files in order and check the timing at each join.
FREEA subtitle task in three steps
Choose your tool
Pick the tool for editing, timing, merging, splitting, or conversion.
Add your file
Open your subtitle file and make the changes you need. Review your changes before downloading.
Download your result
Save the finished file to your device and check it with your video.
From spoken words to useful text
Transcribe recordings and create captions with tools that use AI. Review the draft and make it yours.
Questions, answered
What is AENural?
AENural is the home of Source Window, our flagship product, and free online tools for editors.
How is Source Window different from the free tools?
Source Window is AENural’s flagship product for After Effects. The free online tools are separate utilities you can use with straightforward controls.
Are the online tools really free?
Yes. All current subtitle tools are free to use, with no account required.
Are my subtitle files uploaded?
No. Your subtitle contents are not sent to AENural servers. See the privacy policy for details.
Which subtitle formats can I use?
The editor, sync fixer, and overlap fixer support SRT and VTT. Timing adjustment, merging, and splitting use SRT. Format converters support SRT, VTT, ASS/SSA and SBV inputs, transcript text and JSON outputs, and silent MP4 caption videos. Each tool lists its supported formats and limits.
Ready to edit faster?
Explore AENural Source Window, or finish your next subtitle task with a free online tool.