Checksub vs Editsub

Checksub provides AI-powered subtitles, dubbing, and voice-over for videos through web, API, and extension platforms. It can create subtitles automatically or synchronize subtitles from a script, and it offers subtitle translation in 200 languages. Its dubbing replaces the original voice while keeping the audio background; Checksub also says users can substitute a cloned voice in 30 languages. The online editor lets users revise and regenerate sentences after subtitle or dubbing generation. Subtitles can be burned into exported videos with animated styles, including karaoke animation. Translated-video publishing to YouTube is supported, and the Starter plan connects one channel. Listed integrations include YouTube, Twitch, Google Drive, Adobe Premiere Pro, DaVinci Resolve, and Final Cut Pro. Credit use varies by task: one credit minute per video minute for subtitles, three for dubbing, and five for lip-sync. The service has a free plan and free trial. Checksub was founded in 2017 and is headquartered in France.

EditSub is a web-based subtitle editor and management tool for changing subtitle text, adjusting timing, translating subtitles and converting formats. It works with SRT, VTT, SBV, SUB, ASS and SSA files, and exports SRT and VTT. Its AI translation supports more than 100 languages. Local audio or video files up to 10 minutes can be transcribed free without logging in; longer files and translation require credits. The AI co-pilot can flag reading-speed, timing, overlap, gap, line-length and transcription issues, and can fix or rewrite cues. Timing tools include frame-accurate adjustment, batch shifting, waveform synchronization and real-time preview. Video-to-subtitle accepts listed audio and video formats, with a maximum media size of 3072 MB; subtitle uploads are limited to 10 MB. The free plan includes 10 subtitle files. Pro is listed at $4 a year, billed $48 per year, with 1,500 credits per month.