# Next BConvert

> Browser-side file processing platform with 100+ tools. Privacy-first, no server uploads. All processing happens locally via WASM and Web Workers.

A free, open-source online toolkit for converting, editing, and processing files directly in your browser. No file uploads required — everything runs locally using WebAssembly and Web Workers.

Supported languages: English, Chinese, Spanish, Japanese, Indonesian, French.

## Image Tools

- [HEIC to JPG](/en/heic-to-jpg/): Convert HEIC images to JPG format
- [HEIC to PNG](/en/heic-to-png/): Convert HEIC images to PNG format
- [PNG to JPG](/en/png-to-jpg/): Convert PNG images to JPG format
- [JPG to PNG](/en/jpg-to-png/): Convert JPG images to PNG format
- [WebP to JPG](/en/webp-to-jpg/): Convert WebP images to JPG format
- [WebP to PNG](/en/webp-to-png/): Convert WebP images to PNG format
- [JPG to WebP](/en/jpg-to-webp/): Convert JPG images to WebP format
- [PNG to WebP](/en/png-to-webp/): Convert PNG images to WebP format
- [Image Convert](/en/image-convert/): General image format converter
- [DEF to JPG](/en/def-to-jpg/): Convert DEF images to JPG format
- [DNG to JPG](/en/dng-to-jpg/): Convert DNG raw images to JPG format
- [Image Compress](/en/image-compress/): Reduce image file size while preserving quality
- [Image to PDF](/en/image-to-pdf/): Convert images to PDF documents
- [GIF Maker](/en/gif-maker/): Create GIF animations from images
- [SVG Viewer](/en/svg-viewer/): View and edit SVG files
- [Image Editor](/en/image-editor/): Edit images with cropping, filters, and adjustments

## Video Tools

- [Video Compress](/en/video-compress/): Reduce video file size
- [Video Convert](/en/video-convert/): Convert between video formats
- [Video Trim](/en/video-trim/): Cut and trim video clips
- [Video Audio](/en/video-audio/): Extract audio from video files
- [Video Crop](/en/video-crop/): Crop video frames
- [Video Resize](/en/video-resize/): Resize video dimensions
- [Video Rotate](/en/video-rotate/): Rotate video orientation
- [Video FPS](/en/video-fps/): Change video frame rate
- [Video Mute](/en/video-mute/): Remove audio from video
- [Video Speed](/en/video-speed/): Change video playback speed
- [Video Soundtrack](/en/video-soundtrack/): Add background music to video
- [Video Filter](/en/video-filter/): Apply filters and effects to videos
- [Video Watermark](/en/video-watermark/): Add watermarks to videos
- [Video to GIF](/en/video-to-gif/): Convert videos to GIF animations
- [Video Thumbnail Sheet](/en/video-thumbnail-sheet/): Generate thumbnail sheets from videos
- [Video to HLS](/en/video-to-hls/): Convert videos to HLS streaming format
- [Video Reverse](/en/video-reverse/): Reverse video playback
- [Video Subtitle](/en/video-subtitle/): Extract subtitles from video

## Audio Tools

- [MP3 to WAV](/en/mp3-to-wav/): Convert MP3 audio to WAV format
- [WAV to MP3](/en/wav-to-mp3/): Convert WAV audio to MP3 format
- [FLAC to MP3](/en/flac-to-mp3/): Convert FLAC audio to MP3 format

## Document Tools

- [Document Converter](/en/document-convert/): Universal document converter (Markdown, DOCX, HTML, EPUB, RTF)
- [Markdown to HTML](/en/markdown-to-html/): Convert Markdown to HTML
- [HTML to Markdown](/en/html-to-markdown/): Convert HTML to Markdown
- [Markdown to DOCX](/en/markdown-to-docx/): Convert Markdown to Word documents
- [DOCX to Markdown](/en/docx-to-markdown/): Convert Word documents to Markdown
- [HTML to DOCX](/en/html-to-docx/): Convert HTML to Word documents
- [DOCX to HTML](/en/docx-to-html/): Convert Word documents to HTML
- [Markdown to EPUB](/en/markdown-to-epub/): Convert Markdown to EPUB ebooks
- [EPUB to Markdown](/en/epub-to-markdown/): Convert EPUB ebooks to Markdown
- [Markdown to RTF](/en/markdown-to-rtf/): Convert Markdown to RTF format
- [RTF to Markdown](/en/rtf-to-markdown/): Convert RTF files to Markdown

## PDF Tools

- [PDF to Text](/en/pdf-to-text/): Extract text from PDF files
- [PDF to JSON](/en/pdf-to-json/): Convert PDF to structured JSON
- [PDF to Images](/en/pdf-to-images/): Convert PDF pages to images

## Subtitle Tools

- [SRT to VTT](/en/srt-to-vtt/): Convert SRT subtitles to VTT format
- [VTT to SRT](/en/vtt-to-srt/): Convert VTT subtitles to SRT format
- [SRT to TXT](/en/srt-to-txt/): Extract plain text from SRT subtitles
- [VTT to TXT](/en/vtt-to-txt/): Extract plain text from VTT subtitles
- [Subtitle Convert](/en/subtitle-convert/): General subtitle format converter

## AI Tools

- [Background Remove](/en/bg-remove/): Remove image backgrounds using AI
- [Whisper Transcription](/en/whisper/): Transcribe audio using OpenAI Whisper
- [Text to Speech](/en/tts/): Convert text to speech
- [Text Behind Media](/en/text-behind-media/): Add text behind objects in images/video
- [Semantic Search](/en/semantic-search/): Search files by meaning, not keywords
- [Image Dedup](/en/image-dedup/): Find and remove duplicate images

## Utility Tools

- [ZIP Archive](/en/zip/): Create and extract ZIP archives
- [Webcam Test](/en/webcam-test/): Test your webcam
- [Microphone Test](/en/microphone-test/): Test your microphone
- [Headphone Test](/en/headphone-test/): Test your headphones
- [Speaker Test](/en/speaker-test/): Test your speakers
- [Folder Heatmap](/en/folder-heatmap/): Visualize folder size distribution
- [Text Analyzer](/en/text-analyzer/): Analyze text content and statistics
- [Character Counter](/en/character-counter/): Count characters in text
- [Word Counter](/en/word-counter/): Count words in text
- [Line Counter](/en/line-counter/): Count lines in text
- [Byte Counter](/en/byte-counter/): Count bytes in text
- [Color Picker](/en/color-picker/): Pick and analyze colors
- [Print Calendar](/en/print-calendar/): Generate printable calendars
- [Generate Simple Video](/en/generate-simple-video/): Create simple videos programmatically

## Torrent Tools

- [Torrent to Magnet](/en/torrent-to-magnet/): Convert torrent files to magnet links

## Time Tools

- [World Clock](/en/world-clock/): Display multiple time zones
- [Timezone Converter](/en/timezone-converter/): Convert between timezones
- [Timestamp Converter](/en/timestamp-converter/): Convert Unix timestamps to readable dates