Provider-ready architecture

Turn video or audio into
knowledge you can use.

Paste a YouTube link or upload an audio file. Get clean, searchable text you can organize, download, and reuse.

No account requiredPrivate by defaultDemo providers active
One source. A reusable knowledge asset.
Research teamsCreatorsDevelopersStudents
A BETTER WORKFLOW

Audio in. Clarity out.

nAudio turns unstructured video into organized material that stays useful long after you close the tab.

01

Bring a source

Paste a public YouTube URL or upload your own audio. Common formats are safely normalized for transcription.

▶YouTube · M4A · MP3 · WAV · FLAC
02

Extract meaning

A dedicated transcription engine turns speech into clean, portable text with provider details attached.

03

Make it reusable

Save the source, M4A, and transcript together. Organize results with tags or fetch them over API.

transcript.txtsource.m4a
BUILT FOR CONTEXT

Your research deserves a home.

Stop losing useful transcripts in downloads folders. Tags keep related sources, media artifacts, transcripts, and API workflows easy to find.

  • Reusable tags across your account
  • Searchable processing history
  • One-click TXT and M4A artifact access
  • Secure keys for LLM and automation workflows
#Market intelligence12 tagged sources · Updated today
Search transcripts…
The next era of generative AI24 min · Transcript ready
Building durable product moats48 min · Transcript ready
Signals from the creator economy31 min · Processing
PRICING PREVIEW

Pay for finished work, not empty seats.

Billing is not active yet

Start free, then choose predictable capacity when nAudio becomes part of your research or automation workflow.

FREE

Explore

For occasional sources and testing the full workflow.

€0per month
90 minutesof successful processing each month
  • YouTube links and audio uploads
  • TXT and M4A downloads
  • Reusable tags
  • Standard processing queue
MOST POPULAR
PRO

Build

For creators, researchers, and repeat knowledge work.

€14per month · annual preview
€18 month-to-month
1,800 minutesof successful processing each month
  • Unlimited reusable tags
  • Personal API access
  • Priority processing
  • Extra minutes planned at €0.02/min
SCALE

Automate

For high-volume archives and API-driven pipelines.

€49per month · annual preview
€59 month-to-month
6,000 minutesof successful processing each month
  • Everything in Build
  • Higher API throughput
  • Complete media and text artifacts
  • Extra minutes planned at €0.015/min

Fair usage by design. Only completed source minutes will count. Failed attempts and nAudio's automatic retries will not consume an allowance. Prices, limits, and overages are a preview until billing launches.

FREQUENTLY ASKED

From first source to reusable text.

Everything you need to understand the workflow before you start.

How do I create a transcript?

Choose YouTube URL or Upload audio, add your source and optional tags, and start processing. nAudio prepares the media, extracts the speech, and returns the result in your workspace.

Can I use nAudio without an account?

Yes. Guest jobs are saved to a temporary browser workspace so you can return to the result. Creating an account claims jobs from that same session and unlocks persistent tags and API keys.

What is included with a completed result?

You receive the source link or original filename, normalized M4A audio, a TXT transcript, text statistics, and useful YouTube details such as title, thumbnail, channel, duration, and video ID when available.

Which audio files can I upload?

nAudio accepts common formats including M4A, MP3, WAV, FLAC, OGG, OPUS, WebM, AAC, AIFF, WMA, AMR, and more. The current upload limit is 95 MB per file.

How does the API workflow work?

Create an API key after signing in, submit a YouTube URL or multipart audio file, poll the returned job, then retrieve the transcript and artifact links when processing completes.

How will usage be counted?

Billing is not active yet. The pricing preview is designed around successfully completed source duration. Failed attempts and the three automatic retries do not count against the planned monthly allowance.

Are guest submissions publicly visible?

No public result page is created. Guest activity is associated with the temporary browser session, while authorized operations staff can review anonymous jobs for reliability, safety, and archive management.

Can I process any YouTube video?

Use sources you own or have permission to process. Availability can also depend on the source, region, and YouTube access at processing time.

DESIGNED FOR BUILDERS

A small API with big possibilities.

Submit sources, watch job state, and feed completed transcripts into search, summarization, or your own LLM pipeline.

YOUR LIBRARY

Workspace

Every source, transcript, and artifact in one place.

Your temporary workspace

You can process YouTube links or audio files without an account. Create one to keep results, reuse tags, and use the API.

0Results
0Completed
0Tags

Recent results

Open a result to copy or download its transcript.

No results yet

Your first transcript will appear here.

NAUDIO API · V1

Build with the same pipeline.

A focused REST API for turning sources into reusable text.

API operational
QUICKSTART

From source to transcript

Create a key, submit either a YouTube URL or an audio file, then retrieve the job until its status is completed.

1Create a key2POST a source3GET the result
AUTHENTICATION

Bearer keys

Send your key in the Authorization header. Keys are only shown once and stored as secure hashes.

Header
Authorization: Bearer naud_your_api_key
ENDPOINT

POST /api/v1/transcriptions

Send JSON for YouTube, or multipart form data with a file field for direct audio. Add up to 8 optional tags as an array or comma-separated text.

YouTube URL · JSON
curl -X POST https://naudio.strogleapp.com/api/v1/transcriptions \
  -H "Authorization: Bearer naud_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "youtube_url": "https://www.youtube.com/watch?v=VIDEO_ID",
    "tags": ["SEO", "research"]
  }'
Audio file · multipart
curl -X POST https://naudio.strogleapp.com/api/v1/transcriptions \
  -H "Authorization: Bearer naud_your_api_key" \
  -F "file=@/path/to/recording.mp3" \
  -F "tags=interview, research"
ENDPOINT

GET /api/v1/transcriptions/:id

Response
{
  "ok": true,
  "data": {
    "id": "tr_…",
    "source_type": "youtube",
    "status": "completed",
    "retry_count": 0,
    "max_retries": 3,
    "title": "The source video title",
    "tags": ["SEO", "research"],
    "thumbnail_url": "https://i.ytimg.com/vi/…/maxresdefault.jpg",
    "channel_name": "Source channel",
    "duration_seconds": 304,
    "word_count": 812,
    "reading_time_minutes": 4,
    "transcript": "…",
    "artifacts": { "audio": "/api/…", "transcript": "/api/…" }
  }
}
POST Retry a failed result
curl -X POST https://naudio.strogleapp.com/api/v1/transcriptions/TR_ID/retry \
  -H "Authorization: Bearer naud_your_api_key"

# Starts a new initial attempt plus up to three automatic retries.
DELETE Archive a result
curl -X DELETE https://naudio.strogleapp.com/api/v1/transcriptions/TR_ID \
  -H "Authorization: Bearer naud_your_api_key"

# The result disappears for the user immediately.
# Manager can restore or permanently delete it.
YOUR ACCOUNT

API keys

Create separate keys for each integration and revoke them at any time.

Sign in to manage API keysYour keys and API results belong to your workspace.