Online Audio Conversion
The best 50 Online Audio Conversion AI tools - Free & Paid
Explore 50 AI for Online Audio Conversion
Browser-based Online Audio Converter converts 300+ audio/video formats to MP3, WAV, M4A, FLAC, OGG, etc., extracts audio from video, offers bitrate/sample rate/channel controls, fade/reverse/voice removal, batch conversion, metadata editing, and cloud export.
Subscription
AudioConvertis a free AI tool that instantly transcribes audio files like mp3 and wav into text. It automatically identifies different speakers and provides timestamped transcripts for export.
Free
DocstoAudio is a browser-based tool that converts EPUB, PDF, DOCX, and TXT files into MP3 or M4B audiobooks with chapter marks, supporting batch and chapter-based conversion. It offers standard and premium voices across 30+ languages, with live progress tracking and downloadable single or zipped cha
Free trial
FreeTTS delivers browser‑based AI audio utilities: multilingual text‑to‑speech, accurate speech‑to‑text transcription, vocal isolation, voice enhancement, precise cut/join, and format conversion (MP3, WAV, FLAC, OGG, M4A). All processing is local and files auto‑delete after 12 hours.
Freemium
Audio Transcriber AI is a browser-based tool that converts audio and video files into timestamped, speaker-labeled text. It supports major formats, large uploads up to 5 GB, automatic language recognition for 120+ languages, and includes TikTok MP3 conversion and YouTube audio extraction.
Free trial
Audio Cut is a browser-based tool for trimming and cutting audio files without installation. It supports multiple formats, processes files securely in your browser, and allows for lossless export.
Free
TurboScribe is an AI-powered transcription tool offering ultra-fast conversion of audio and video files to text. It supports over 98 languages, handles uploads up to 10 hours long, and features speaker recognition for meetings, interviews, and podcasts.
Freemium
- $10/mo
Voice Changer .io allows uploading or live recording, applying effects such as monster, robot, alien, echo, reverse, slow, fast, and custom pitch, previewing them in real time, and downloading the result as .wav for podcasts, videos, streams, or presentations.
Subscription
Karaoke Maker uses browser-based AI vocal isolation to turn MP3, WAV, FLAC, or M4A tracks into downloadable instrumentals. Adjust vocal bleed and transpose pitch via sliders for practice, covers, performances, or video soundtracks.
Free
- $4/mo
TranscribeToText.AI turns audio and video files—up to 10 hours or 5 GB—into accurate text in 100+ languages, supporting MP3, MP4, WAV, OGG, etc. Export as DOCX, PDF, TXT, SRT, VTT or import from URLs, YouTube, Google Drive, Dropbox, or live meetings.
Freemium
EchoWave converts audio into video using templates or custom layouts, adds subtitles and waveforms, offers editing tools, compresses files, and exports to social media formats—ideal for podcasters, musicians, and creators seeking quick, cloud‑based video production without software.
Freemium
- $19/mo
mp3converter AI is a user-friendly online tool for converting various audio formats, like WAV and FLAC, to MP3. It supports batch conversions, ensuring high-quality output and compatibility across devices while maintaining audio fidelity.
Freemium
audiototextconverter.com is a versatile AI transcription tool that converts audio and video files into accurate, searchable text in 63 languages. It offers a simple upload-transcribe-export workflow, with editing, summaries, and mind maps for efficient review and repurposing.
Free trial
ttsMP3.com converts text to spoken audio in over 28 languages with natural voices. Supports multiple speakers, SSML tags, and instant MP3 downloads. Ideal for e‑learning, slide decks, videos, and enhancing website accessibility.
Free
AnyToSpeech converts text, PDFs, DOCX, URLs, and images into natural‑sounding audio across 16 languages, offering 100+ voices and voice‑cloning from a 30‑second clip. It transcribes and cleans audio, supports translation, and is available via web and Android.
Subscription
Music 2 Tube automatically converts MP3/WAV files into videos for YouTube, Instagram, TikTok, and Reels. It supports bulk drag‑and‑drop, direct uploads, scheduled publishing, visual effects, cloud‑based covers, and maintains original audio quality across platforms.
Paid
- $3.49
LuvVoice is a free online text-to-speech tool that converts text into audio using over 200 voices in 70 languages. Users can customize speech rate and pitch, making it suitable for content creation and educational purposes.
Freemium
AiVOOV converts scripts into realistic audio in seconds, offering 2,300+ voices across 155+ languages. Features include customizable pauses, tone, automatic subtitle generation, and audio merging, suitable for videos, podcasts, e‑learning, IVR, and marketing.
Subscription
- $13.41/mo
m3u8 player online is a browser-based HLS player and downloader that plays live and on-demand streams with adaptive bitrate switching, while also enabling in-browser conversion of m3u8 files to MP4/WebM/MKV and batch downloading with resume support.
Free
BookFab downloads and decrypts ebooks and audiobooks from Kindle, Kobo, Audible and other stores, converts and batch-processes files to EPUB/PDF/MP3/FLAC/OPUS, preserves formatting and metadata, offers DRM removal, a Calibre plugin and AI TTS with voice cloning.
Free
YouTube MP3 Converter is a free tool that lets you convert YouTube videos to high-quality MP3 files instantly without registration. Simply paste the video URL, download the audio, and enjoy ad-free conversions.
Free
Wondershare UniConverter is an AI‑powered all‑in‑one tool that converts, enhances, compresses, records, and edits video and audio. It supports 1,000+ formats, delivers ultra‑fast conversions, upscales to 4K/8K, adds subtitles, removes backgrounds, and preserves metadata for creators and SMBs.
Paid
FreeSubtitles.AI converts MP4, MKV, MOV, MP3, WAV, and FLAC files up to 1 hour and 300 MB into accurate transcripts in over 100 languages, then translates subtitles into 91 languages, supporting educators, podcasters, and researchers.
Free
Video Converter is a free browser-based tool that converts video and audio files between popular formats and extracts audio. It offers cloud processing for large files, batch conversion, and adjustable quality settings, all with secure, encrypted handling.
Free
Audioread transforms articles, PDFs, emails, URLs, and RSS feeds into natural‑sounding audio in 80+ languages, with adjustable speed, MP3 downloads, and private podcast feeds for cross‑device streaming. It offers AI summaries, privacy mode, Slack integration, and an API for developers.
Subscription
Online TTS platform converts text into audio in 100+ languages with 148+ AI voices. Users can tweak speed, pitch, pause, add background music, and download MP3, OGG, AAC, OPUS, or WAV for dubbing, audiobooks, and language learning.
Free
AudioBot converts written text to natural‑sounding MP3 audio using over 500 AI voices in multiple languages, including diverse Spanish accents. Users can tweak pitch, speed, and tone, making it useful for video, podcasts, and accessibility.
Paid
Free Text to Speech Online converts unlimited text into audible speech across multiple languages, voices, and genders. Users can adjust speed with a slider, control playback, and the service works on all browsers and mobile devices without login.
Free
AudioBookHub is a comprehensive audio learning platform that transforms text from PDFs, articles, URLs, and photos into narrated audio with 19+ AI voices, while also offering 10,000+ audiobook summaries and full public-domain titles. It enhances retention through quizzes, mind maps, and reflection p
Freemium
Automatically transcribes audio or video files up to 1 hour in any of 20 supported languages, supporting MP3, MP4, WAV, FLAC, WebM, etc. Outputs plain text, SRT, VTT or JSON and produces concise summaries.
Freemium
Video Transcriber AI is a tool that instantly converts videos from MP4, YouTube, or Zoom into text. It offers speaker recognition and accuracy modes for transcriptions up to 1GB, with no sign-up required.
Freemium
AudioX is an AI audio generation tool that converts text, images, and videos into high-quality music and sound effects. It offers customizable audio parameters, multi-track editing, and supports 30+ music styles for versatile creations.
Freemium
- $5/mo
ttsvox is a web-based text-to-speech and AI voice generator that converts text into MP3 or WAV files using over 350 voices across 100+ languages and accents, with adjustable speed and volume. It supports unlimited browser-based conversions without downloads, making it ideal for video narration, e-le
Free trial
AudiowaveAI turns articles, blogs, PDFs, ePubs, and other text into natural‑sounding audio in 100+ languages, offering up to ten distinct voices. Browser‑based playback, shareable files, and flexible pay‑per‑word credits suit creators and learners.
Freemium
A web‑based Microsoft AI TTS tool offering 330+ neural voices in 129 languages. Users can adjust rate, pitch, pauses, and style for news, scripts, or narration. Works across Chrome, Firefox, Edge, with an API for web integration.
Free
article2audio turns web articles into spoken audio with natural pauses and contextual voice‑over for images. It summarizes tables, explains code, provides two American English voices, and runs as a web app addable to mobile homescreens, offering a Listen page.
Paid
Narrator converts ePub, PDF, DOCX, TXT, and RTF files into natural‑sounding speech in over 25 languages. Playback speed ranges from 0.5× to 3×, and audio can be exported as a single .m4a file. Works offline after voice download.
Free
aiclonevoicefree.com is a free AI voice cloning tool that generates realistic podcasts by uploading short audio samples (5-30s) and converting text into cloned speech. It supports multiple formats, cross-language synthesis, and offers pitch/speed adjustments with preview and download options.
Freemium
OneAudio converts spoken recordings into concise written summaries using GPT‑4.1. Users upload or record up to 40 minutes, choose language, auto‑detect topics, export notes to productivity tools, and keep original audio files.
Freemium
Outtloud converts PDFs, EPUBs, DOCXs, web articles, and YouTube transcripts into natural‑sounding audio in over 50 languages. It supports adjustable speed, dyslexia‑friendly fonts, voice cloning from a short sample, OCR for scanned files, and built‑in bookmarking, annotation, and reading‑goal tracki
Subscription
- $14/mo
Soundwise.ai is a free browser-based transcription tool that quickly converts audio and video files, including MP3, WAV, and MP4, into text. It offers cloud storage, synchronization, and drag-and-drop file uploads for seamless access across devices.
Freemium
- $10/mo
OptimizerAI generates up to 60‑second stereo audio at 44.1 kHz from text or magic prompts. It supports style selection, audio modification, and batch creation, producing files compatible with game engines, video editors, and media workflows.
Freemium
- $20/mo
Web Whisper converts online content into audio, allowing users to listen to articles and blogs easily. It features one-click audio generation, customizable playlists, automatic language detection, and a user-friendly interface for an enjoyable, hands-free experience.
Freemium
Audionotes AI tool for effortless voice-to-text conversion, organization, summarization, and content generation.
Freemium
Online voice‑synthesis tool that converts text into spoken audio in multiple languages. It offers standard, Gen2, prompted, and voice‑cloned voices with emotional tones, adjustable gender, accent, speed, background levels, and MP3 export for creators and educators.
Freemium
- $11/mo
Video To Blog converts YouTube links or uploads into ready‑to‑publish blog posts in under a minute, supporting 30+ languages. It formats prose, adds headings, SEO metadata, and embeds, and outputs HTML, Markdown, PDF, or links.
Paid
Audiotype transforms audio and video files into transcriptions and subtitles in 30 languages, automatically detecting speakers and adding punctuation. It supports MP3, MP4, WAV, FLAC, AVI, MOV, MKV and exports TXT, DOCX, PDF, SRT, VTT, with deleted after 15 days.
Free
AI Dubbing.io is a free online tool that uses AI to generate natural voiceovers and translate audio in over 20 languages. It allows you to dub videos with a library of 100+ voice tones or clone your own voice from a short recording.
Free trial
Cockatoo converts audio and video files to text in seconds, supporting 90+ languages. Users drag‑and‑drop files, and the service auto‑extracts audio, offers export to SRT, DOCX, PDF, TXT, and an in‑browser editor, with secure data handling.
Freemium
- $11.99/mo
VoiceChanger.im converts voice recordings or text into high‑quality audio with AI‑generated effects such as gender conversion and robotic tones. Server‑side processing supports multiple formats, precise parameter control, and downloadable files for podcasts, videos, or social media.
Free