Source Window — a new After Effects tool from AENural. Explore →

About AENural

Tools for people who edit.

Source Window

Alongside the free tools, we are developing Source Window, a tool for After Effects. It is currently in development and not yet released; the free subtitle tools are available to everyone today.

Meet Source Window

Free online tools

AENural builds practical tools for people who edit video. Our free subtitle tools let you edit subtitle text and timing, fix files that drift out of sync, merge or split SRT files, and convert between SRT, VTT, ASS, SBV, TXT, and other formats — without installing software and without creating an account.

Explore free tools

Know what a tool can do

We keep the free tools deliberately simple and honest: each tool explains the formats and limits it works with, and the timing tools work from the timestamps in your file — they do not listen to your video, so you stay in control of the final check.

Help with subtitle files