Download Subtitle Edit 2026 for free. This professional software creates, edits, and manages video subtitles. Edit SRT subtitles, adjust timing accurately, and includes built-in AI tools. This is the latest version.

Getting to know Subtitle Edit

Subtitle Edit is an open-source program for creating and editing subtitle files, standing as one of the most popular tools among subtitle translators and fansub groups. Developed by Nikolaj Lynge Olsson, also known as Nikse, it is written in C# and available for free system use.

Its primary function is to manage subtitles from start to finish, including creating new subtitle files, synchronizeing timing with the video audio, translating languages, and converting from one format to another. This tool supports over 200 subtitle file formats, covering popular formats like SubRip (.srt), MicroDVD, Sub Station Alpha (.ass/.ssa), and WebVTT, as well as specialized formats for various editing software and media players.

What sets this software apart from other tools is its ability to display waveforms and spectrograms of audio files from videos. Users can see where the speech begins and ends, allowing them to accurately adjust the start and end points of each subtitle line to match the audio, eliminating the need to guess based solely on listening. Furthermore, it features an automatic error detection system, identifying issues such as lines that are too long or too short, text exceeding defined limits, time overlaps, and missing ellipses, thus improving the quality of subtitles before publication.

For visual subtitles, such as DVD subtitles (VobSub) and Blu-ray subtitles (PGS), this system uses OCR to convert image text into actual text, and supports multiple languages. For translation, there are automatic translation tools through services like Google and Microsoft Translate, allowing for faster initiation of translation work before manual refinement of the language for a more natural feel.

This tool also includes a Netflix QC check function for those who create subtitles for streaming platforms. Furthermore, it can play videos in various formats through libraries like VLC or MPV, allowing you to watch videos and edit subtitles simultaneously without switching between apps. A Thai language menu is also available.

Thanks to its free, ad-free nature and continuously supported community, Subtitle Edit has become a go-to tool for freelance translators, fansub teams, and studios looking to create comprehensive subtitles without incurring costs, especially if they need to edit the original video before adding subtitles. ShotCut It's a free video editing program that's a good fit for this type of work.

Key Features

Subtitle Editing . Open and edit subtitle files in a wide variety of formats such as SRT, SUB, ASS, and VTT with real-time video preview.
Subtitle Timing Adjustment . Accurately adjust subtitle timing to match spoken audio using Waveform and Spectrogram.
Subtitle Audio Synchronization . Automatically match subtitles with speech, detect offsets and frame rates, and synchronize audio tracks with live preview.
Creating New Subtitles . Create new subtitle files from scratch with convenient tools for quickly setting start and end times.
AI Speech-to-Text System . Support for Speech-to-Text transcription via the WhisperX model and local system processing.
Text-to-Speech System . Support for Text-to-Speech using a variety of synthetic voice engines.
Automatic Subtitle Translation . Integration with translation services and AI LLMs to assist with subtitle translation and text tone adjustment.
Subtitle Checking and Repair . Features Spell Check and Fix Common Errors functions to repair corrupted subtitle flaws.
File Format Conversion . Freely convert subtitle files across formats, including studio-grade formats like EBU-TT.
OCR Text Extraction from Images . Extract subtitles from image files or DVDs/Blu-rays using Paddle OCR and CrispEmbed engines.
Advanced Style Customization . Detailed adjustment of fonts, colors, sizes, and positioning effects for subtitles.
Thai Language Interface Support . Easy to use, with customizable workspace layouts to suit individual preferences.

What's new

Version 5.4.0 – 6th of November 2026

Revamped almost every window with a modern, unified look and the ability to instantly switch themes while in use.
Added new Nord, Midnight Cinema, and Sakura themes with crisp SVG icons for all screen sizes.
Sync subtitles with audio using offset and frame rate detection, along with audio track syncing and live preview.
Full support for YouTube timed text (.ytt/srv3) including pens, positioning, karaoke, and style windows.
Export D-Cinema SMPTE 2014 as MXF files and export Dialogue lists as Excel (.xlsx) with customizable columns.
Built-in update checking and installation with restart capabilities across Windows, Linux, and macOS.
Side-by-side automatic translation, multi-row translation with context, and find-and-replace in the translation column.
Added the Opper translation engine and a Generate with AI button for writing synopses.
OCR features a video preview window, range selection for Video OCR, and a new OCR model based on llama.cpp.
Rewritten SubRip reader offering better tolerance for corrupted files and 2.6–12x faster performance.
ASSA drawing tools for text, shapes, and animations, complete with a CapCut-style effect gallery.
Batch Convert with plugin execution support, a function search box, and a redesigned Multiple Replace similar to SE4.

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