Batch Soft Subtitle Muxing Tool
Batch mux SRT, ASS, and other subtitles into MP4 or MKV while preserving the original audio and video codecs
Free for a limited time
Explore our newest tools for faster browser-based processing. Continuously updated and improved.
Batch mux SRT, ASS, and other subtitles into MP4 or MKV while preserving the original audio and video codecs
Read audio and video codec, bitrate, frame rate, sample rate, and other parameters, and export reports.
Convert CEB/CEBX page resources to PDF, then generate a CEBX source project package from the PDF.
Create U.S. visa photos with batch processing and print layouts
Read local WeChat chat history, compare it in real time against set keywords, and when a match is found, show a pop-up alert and automatically archive the record.
Automatically detects the four corners of photographed documents, receipts, and whiteboards, batch corrects perspective and crops, and supports multiple document enhancements such as grayscale and binarization.
Automatically pair main videos and picture-in-picture assets by file name, batch overlay and compose picture-in-picture videos, with support for position scaling, green screen keying, text overlays, and fade-in/fade-out.
Read text in a folder as prompts, batch call AI APIs, and save response results, supporting multiple API formats and concurrent processing.
Automatically detect and restore garbled Chinese text in TXT, subtitles, Word, Excel, PPT, and other documents, with support for batch conversion across multiple encodings.
Batch split images into 3x3 grids, 4x4 grids, custom grids, or long image strips, with support for multithreaded acceleration, number overlays, and uniform size output.
Batch remove gray backgrounds, shadows, and paper texture from scanned documents, enhance the clarity of black-and-white text, ideal for organizing archives, exam papers, contracts, and receipts.
Batch remove metadata such as video recording device, GPS, and creation time, and batch write information such as title, author, and copyright.
Batch remove background noise, electrical hum, and wind noise from audio, with support for dereverberation, echo removal, and vocal enhancement.
Using voiceprint fingerprint comparison, automatically find duplicate and similar audio in massive audio collections. Supports cross-format and cross-bitrate recognition, with one-click organization and deduplication.
Batch-check audio sample rate, clipping, pops, silence, loudness, signal-to-noise ratio, and more, and generate Excel/CSV quality inspection reports with one click.
Batch convert between SRT, VTT, ASS, LRC, and TXT subtitle formats, with support for timeline offsets, merge sorting, and overlap repair.
Batch voice changing for video and audio files, with multiple built-in voice presets, support for custom pitch shifting and reverb, and batch folder processing.
AI-powered smart background removal for batch ID photo creation, one-click background color replacement with red, blue, or white, built-in sizes for 1-inch, 2-inch, ID cards, passports, and more, with support for multi-photo layout and printing.
Batch separate vocals and accompaniment from music, with support for recording noise reduction, echo and reverb removal, vocal extraction, and local offline processing.
Batch add page numbers and numbering to images, with recursive folder support and customizable page number position, font, size, color, and starting number.
Intelligently detects and trims video intros and outros, supports removing heads and tails from single files, multiple files, and folders in batches, and automatically groups and merges videos by directory
Randomly extract video clips from multiple folders and batch merge them to generate multiple brand-new videos, with support for custom resolution, frame rate, and encoding parameters.
Batch-detect and crop black borders, white borders, and custom solid-color borders from images, with support for recursive folders and multithreaded processing.
Intelligently pairs the front and back of IDs by file name, supports portrait, landscape, and A4 layouts, and merges them with one click for export as JPG, PNG, PDF, or Word.
Batch-identify local audio and video content, automatically generate timeline subtitles, and scan them against a prohibited words list. When matches are found, a detailed report is output for easy review and correction.
Batch transcribe video and audio files offline into text, and export to TXT, SRT, VTT, JSON, LRC, CSV and other subtitle and text formats with one click.
Batch add floating watermarks to videos, with support for various dynamic watermark modes such as bouncing movement, tiling, and rotation. Customize text or image watermarks.
Batch adjust video brightness, contrast, saturation, and color temperature. Supports one-click application of various filter style presets to quickly unify the color tone of your videos.
Batch adjust video and audio volume, supporting multiplier, dB, LUFS loudness normalization, peak normalization, and mute modes, while preserving video quality and automatically adapting the output format.
Scans CAJ files in a specified directory, automatically identifies corrupted files, and copies or moves them to a save directory as needed, with support for recursive subdirectories and duplicate-name handling.
Batch combine images into MP4 videos, with support for transition effects, background music, subtitle watermarks, picture-in-picture, and multiple image selection modes.
Automatically detects black borders at the top, bottom, left, and right of videos and crops them precisely. Supports batch import of multiple videos for one-click processing and export.
Uses a large model to score AI-generated videos across six dimensions, identify major issues such as taking off in place, clipping, and subject jumps, and automatically classify and archive them based on thresholds.
Convert text to Morse code with adjustable speed, tone, waveform, live playback, WAV download, and batch ZIP export.