Understand.
Not just transcribe and translate.

Upload audio or video and get bilingual transcripts, AI summaries, and sentence-level insights in one place.

Download for Windows
LexCat main interface showing transcript, translation, summary and insight
🎧

Podcasts are too long

Hours of content you don't have time to listen to carefully.

📚

Foreign lectures are hard

No transcript, no translation, no way to review later.

🎙️

Meeting recordings pile up

Hours of discussions with no efficient way to extract key points.

🎬

Videos fade from memory

You watched it, but nothing stuck — no notes, no system.

LexCat helps you turn content into understanding.

From Audio to Understanding

Upload once. Get transcript, translation, summary, and insights — automatically.

1
Upload

Import Audio or Video

Drag and drop audio, video, or document files. Supports MP3, WAV, M4A, MP4, PDF, DOCX, and more. Files are processed locally or via cloud.

Upload interface
2
Transcript

Automatic Transcription

High-accuracy ASR converts speech to text. Choose cloud-accelerated or local offline processing — your data, your choice.

Transcription interface
3
Translation

Bilingual Reading

Read original and translated text side by side, sentence by sentence. Supports 15+ languages with context-aware AI translation.

Bilingual reading interface
4
Summary

AI Summary

Get a concise summary of the entire content — key ideas, important quotes, and terminology extracted automatically.

Summary panel
5
Insight

Deepen Your Understanding

Go beyond translation. Click any sentence to reveal its core meaning, key expressions, structural insights, and usage context. Built for understanding, not just conversion.

Insight panel showing sentence analysis

Translation tells you what.
Insights help you understand why.

Most tools stop at translation. LexCat goes further — so you don't just read the words, you grasp the meaning.

Traditional Tools

Transcript✓
Translation✓
Summary✓
Sentence Insights—
Information Understanding—

LexCat

Transcript✓
Translation✓
Summary✓
Sentence Insights✓
Information Understanding✓

Everything you need to process audio content

Bilingual reading

Bilingual Reading

Read original and translated text side by side. Multiple view modes including table, stacked, and paper layout.

AI Summary

AI Summary

Smart summaries extract core ideas, key quotes, and terminology from any recording or document.

Notes and bookmarks

Notes & Bookmarks

Save important sentences with your own thoughts and tags. Search, filter, and organize your knowledge.

Insights

🧠 Insights

Click any sentence to reveal its core meaning, structure, and usage context. Go beyond words to understanding.

Who uses LexCat

Students, researchers, professionals — anyone who needs to understand audio content in a foreign language.

🎓

Students

Lecture recordings, online courses, foreign language study materials.

🔬

Researchers

Interview transcripts, academic papers, multilingual research materials.

💼

Professionals

Meeting recordings, conference calls, training sessions, client communications.

🎧

Content Lovers

Podcasts, video talks, interviews, documentaries in any language.

Frequently Asked Questions

How to transcribe audio to text?
Upload your audio file to LexCat and click Start. The built-in ASR engine will transcribe the speech into text automatically. You can then translate, summarize, and explore insights from the transcript.
How to summarize long recordings?
After transcription, click the Summarize button. LexCat's AI will generate a concise summary highlighting key ideas, important quotes, and terminology. The summary panel appears alongside your transcript for easy reference.
What audio formats are supported?
LexCat supports MP3, WAV, AAC, FLAC, OGG, M4A, and MP4 video files. For text-based content, PDF, DOCX, and Markdown are also supported.
Can I translate video content?
Yes. Upload any video file (MP4, AVI, MOV, etc.) and LexCat will extract the audio, transcribe it, and translate the transcript into your target language. The result is a side-by-side bilingual transcript.
How to take notes from podcasts?
Upload a podcast recording, transcribe it, and use the bookmark feature to save important sentences. Add your own thoughts and tags. The collected notes can be reviewed later in the Insights page. LexCat also offers AI-powered sentence insights to help you understand each statement more deeply.
Is there a free version?
Yes. LexCat offers a free trial with 500 points to get started. You can use it to transcribe, translate, and summarize short recordings. Pro plans offer higher quotas and cloud-accelerated processing for longer content.
Does LexCat work offline?
LexCat supports local offline transcription using Whisper, a private on-device speech recognition engine. Your audio data stays on your computer. Cloud processing is also available for faster, longer transcriptions.
How many languages are supported?
LexCat supports 15+ languages for transcription and translation, including English, Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Italian, Russian, Arabic, Hindi, and more.
What is the sentence insight feature?
Sentence Insights go beyond translation by analyzing each sentence's core meaning, key expressions, structural patterns, and usage context. Click the insight button on any sentence to understand not just what it says, but why it's said that way. This feature is unique to LexCat.
How to export transcripts?
Transcripts can be exported in Markdown, Plain Text, PDF, and SRT subtitle formats. Export any note with a single click from the Notes page.
Best software for lecture transcription?
LexCat is designed specifically for educational content. Upload lecture recordings, get accurate transcripts, translate them, and generate summaries. The paper mode provides a comfortable reading layout for academic materials. Many students and researchers use LexCat as their primary lecture transcription tool.
How to convert audio into study notes?
Upload your audio, transcribe it, and save it as a note. The AI summary will extract key points automatically. You can also bookmark individual sentences and add your own notes. All saved content can be searched, tagged, and organized for later review.
Is my data private?
When you use local transcription mode, your audio data never leaves your computer. Cloud transcription sends audio to our server for faster processing. You choose which mode to use. No data is used for training models.
Can I use LexCat for meeting notes?
Absolutely. Record your meetings, upload the audio, and get a full transcript with translation and summary. The insights feature helps you understand key discussion points. Export the results as notes for distribution to your team.
How does cloud sync work?
Notes are synced bidirectionally across devices when you log in. Changes are automatically pushed on save and pulled on startup. Conflict resolution is based on timestamps. Your data is organized by username on the server.

Start understanding audio content better.

Download LexCat and try it free.

Download for Windows

Free version available · No registration required · Windows 10/11 & macOS