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
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
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
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
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
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
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
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
Uniscribe is a speech text converter that transcribes audio and video files in 98 languages, offering output formats like TXT, PDF, DOCX, and SRT. It also generates summaries, mind maps, and extracts key insights from the transcriptions.
Free trial
- $6/mo
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
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
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
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
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
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
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
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
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
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
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
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
Audionotes AI tool for effortless voice-to-text conversion, organization, summarization, and content generation.
Freemium
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
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
An AI tool called Aimasuk provides online audio transcription services using AI technology to convert audio and video recordings into text quickly and easily.
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
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
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
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
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
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
ListenDock converts PDFs, DOCX, EPUB, and web pages into MP3 audio, offering full text or summarized episodes in multiple languages, including technical and mathematical content, for mobile listening during commutes or study sessions.
Free
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
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
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
Transkribieren converts MP3/WAV/M4A/FLAC/OGG/AAC audio and MP4/MOV/AVI/MKV/WebM video into text, supporting 99+ languages, automatic speaker detection, and exporting to Word, PDF, SRT, VTT, TXT, JSON, HTML, with AES‑256 encryption and SOC 2 Type 2 compliance.
Paid
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
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
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
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
PodGen.io converts text, YouTube videos and PDFs into podcast-ready audio with 50+ voices, voice cloning, multi-host and multilingual support, offering transcript editing, AI script/show-note generation, audio mastering, publishing workflows, RSS/API integration and analytics.
Freemium
- $50
AIVideo.com automates video production, creating music videos, lyric visuals, looping clips, and converting audio or images into video. It offers text‑to‑image/video, background removal, matchcut editing, and visual effects, enabling quick, professional media creation.
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
makeaudio.app transforms up to 100,000 characters of text into spoken audio in 16 languages, offering six natural‑sounding voice options. Export in MP3, WAV, or FLAC, making it suitable for writers, educators, and business content production.
Freemium
- $10
VocalRemover is a web‑based AI tool that isolates vocals and accompaniment from audio files. It supports MP3, WAV, FLAC, MP4, MKV, and YouTube/TikTok links, and outputs stems in WAV, MP3, or FLAC for karaoke, remixing, or podcast editing.
Freemium
Revoldiv lets users upload up to two‑hour videos or audio files for instant AI transcription. It allows editing the transcript, auto‑updates the video, and offers speaker detection, chaptering, audiograms, export to .txt/.srt/.vtt, plus collaborative commenting—available on Chrome and Firefox.
Subscription