Audio to Text Converter — Free Online Tool

Why Use an Online Audio to Text Converter

An online audio to text converter eliminates the need for manual transcription, which typically takes 4-6 hours for every hour of audio. With Exactum, a one-hour recording is converted to text in 2-3 minutes — that's over 100x faster than typing it yourself. The time savings compound quickly for anyone who works with audio regularly.

Unlike desktop software, Exactum works entirely in your browser with no downloads or installations. Upload your audio file from any device — computer, tablet, or phone — and get results instantly. Your files are processed securely with 256-bit encryption and are not stored permanently on our servers. This browser-based approach also means you always have the latest version of the AI engine without manual updates.

The converter supports 47 languages with automatic detection, meaning you don't need to specify the language before converting. It handles accents, dialects, and even code-switching (mixing languages in the same recording) accurately. Whether your audio is in English, Spanish, Mandarin, or Arabic, the AI adapts its recognition model to deliver the best possible accuracy.

Getting the Best Conversion Results

Audio quality directly affects transcription accuracy. For the best results, record in a quiet environment with minimal background noise. Use a dedicated microphone rather than a laptop's built-in mic when possible. If you're recording a meeting, position the microphone centrally so all speakers are captured clearly. Even small improvements in recording setup translate to noticeably cleaner transcripts.

File format matters less than you might think — Exactum's AI handles compressed formats like MP3 with minimal accuracy loss compared to uncompressed WAV. However, avoid audio that's been heavily compressed multiple times, as each compression cycle degrades quality. If you have the option, recording at 16kHz or higher sample rate ensures the speech frequencies are fully captured.

For specialized content (medical, legal, technical), add custom vocabulary terms before converting. This tells the AI to listen for specific words and phrases, dramatically improving accuracy for industry-specific terminology. You can save vocabulary lists and reapply them to future conversions, creating a tailored experience for your specific domain.

Batch Audio Conversion

Professionals who work with large volumes of audio need more than single-file conversion. Exactum supports batch uploads, letting you queue multiple audio files for processing. Upload a folder of interview recordings, podcast episodes, or meeting audio and the system processes each file sequentially, delivering transcripts to your dashboard as they complete.

Each transcript in your dashboard is individually searchable and exportable. You can filter by date, duration, or keyword to locate a specific recording. The search function works across all your transcripts simultaneously, making it easy to find a particular quote or topic across dozens of files.

Organizing your transcripts is straightforward. The dashboard displays your conversion history with file names, dates, durations, and word counts. Paid plans retain your transcript history for 30 days or unlimited depending on your tier, so you always have access to recent work without needing to re-convert files.

For high-volume users, minute packs provide additional conversion time without changing your plan. Purchase additional minutes as needed and they are applied instantly to your account, ensuring you never hit a wall during a busy project.

Integration and Export Options

Converting audio to text is often just the first step in a larger workflow. Exactum connects to the tools you already use so transcripts flow seamlessly into your existing processes. Export as TXT, SRT, VTT, PDF, DOCX, or Markdown depending on where the text needs to go next.

Notion integration lets you send transcripts directly to your workspace with a single click. The transcript arrives as a formatted Notion page with headings, timestamps, and speaker labels preserved. Obsidian users can export as Markdown files that slot directly into their knowledge base.

For content publishers, Exactum connects to WordPress and Ghost. Convert an audio recording to text, then publish it as a blog post or article without leaving the dashboard. The AI can even reformat the transcript into a polished article using repurposing templates before publishing.

Developers and teams that need programmatic access can use the Exactum API to build audio-to-text conversion into their own applications. The API accepts audio files and returns structured JSON with the transcript, timestamps, speaker labels, and analysis data. Zapier integration is also available for no-code automation workflows.