Drag & Drop Files Here
or
Supported: PDF, DOCX, XLSX, PPTX, EPUB, RTF, common images, audio to WAV, video frames, and text/data files. Server-side uploads up to 4 MB.
Drag & Drop Files Here
or
Supported up to 4 MB: audio/video, PDF, DOCX, text/data files, and JPG/PNG/WEBP/HEIC images
Conversion Formula:
Select units to see the conversion formula
Welcome to Convert Lab
Convert Lab is a free online platform designed to simplify everyday conversion work. You can convert supported files between practical formats, transcribe small audio, video, image, and document uploads, and perform precise unit conversions in one convenient location.
In today's fast-paced digital world, the ability to quickly and accurately convert between different file formats and measurement units is essential. Our mission is to provide accessible, high-quality conversion tools that save you time and eliminate the need for multiple specialized applications or expensive software subscriptions.
Why Choose Convert Lab?
Lightning Fast
Convert files, units, and transcribe in seconds with our optimized algorithms
Secure & Private
Browser conversions stay on your device where possible; server-side temporary files are cleaned up after processing
AI-Powered
Transcription uses Google Gemini for media, image, and PDF understanding
Universal Converter
Convert a focused set of real file formats, transcribe supported small files, and calculate common unit measurements
Mobile Friendly
Access the tools seamlessly on any modern device
Precision Control
Fine-tune your conversions with advanced options and high accuracy results
How It Works
File Converter
Upload Your File
Drag and drop or browse to select the file you want to convert
Choose Target Format
Select one of the real output formats available for the file you uploaded
Convert & Download
Click convert and download your newly converted file
Transcription
Upload Media or Document
Upload supported audio, video, image, PDF, DOCX, or text/data files up to 4 MB
Choose Output Format
Select the format you want for your transcription (TXT, DOCX, PDF, etc.)
Transcribe & Download
Convert Lab extracts text locally where it can and uses Gemini for media, images, and PDFs
Unit Converter
Select Conversion Category
Choose from length, weight, temperature, currency, and many other conversion categories
Enter Your Value
Input the value you want to convert and select the source and target units
Get Instant Results
See your conversion result instantly with the exact conversion formula used
Real-World Applications
Our conversion tools are designed to solve real problems for individuals and professionals across various fields. Here are some common use cases:
Students & Educators
- Convert lecture recordings to text for easier studying
- Extract text or images from PDFs for assignments
- Convert between metric and imperial units for science projects
- Create accessible versions of educational materials
Business Professionals
- Transcribe meeting recordings for accurate minutes
- Convert presentations between different formats
- Transform data between different measurement systems
- Convert documents to universally accessible formats
Creative Professionals
- Convert image files between formats for different platforms
- Convert supported audio files to WAV for editing workflows
- Create image frames from supported video files
- Transcribe interviews for content creation
DIY & Engineering
- Convert between measurement units for construction projects
- Transform technical documents between formats
- Convert pressure, energy, and other specialized units
- Calculate fuel efficiency for vehicles and machinery
Frequently Asked Questions
Is Convert Lab really free to use?
Yes, Convert Lab is completely free to use. We don't require any payment, subscription, or even account creation. Our service is supported by minimal, non-intrusive advertising to cover our operational costs.
How secure is my data when using Convert Lab?
Files uploaded to Convert Lab are processed in your browser when possible. Some conversion requests use our serverless API, and transcription requests are sent through our serverless API to Google Gemini. We do not intentionally permanently store uploaded files on our servers, but third-party processors may apply their own processing and retention practices.
What file formats are supported for conversion?
Convert Lab currently supports a focused set of real conversions:
- Images: JPG, PNG, WEBP in the browser; JPG, PNG, WEBP, GIF, TIFF, AVIF, HEIF, SVG, BMP, and ICO to common image formats or PDF on the server
- Audio to WAV: MP3, OGG, FLAC, AAC, M4A
- Video frames: MP4, MOV, WEBM to JPG, PNG, or WEBP
- Documents: DOCX, RTF, EPUB, and PPTX to PDF, TXT, HTML, or MD; XLSX to CSV, JSON, HTML, PDF, TXT, or MD
- Text/data: TXT, CSV, TSV, JSON, YAML, XML, MD, HTML, including CSV/TSV/JSON/YAML to XLSX and PDF output for common text/data formats
- PDF: PDF to PNG, JPG, WEBP, TIFF, AVIF, GIF, TXT, MD, HTML, CSV, JSON, or XML; multi-page PDF image exports download as a ZIP
The available target formats will depend on the source file you upload.
How accurate is the transcription feature?
Our transcription feature uses Google Gemini for supported media, images, and PDFs, plus local text extraction for plain text and DOCX-style uploads. Accuracy depends on source quality, background noise, speaker clarity, accents, scan quality, and document layout.
Are the currency conversion rates up-to-date?
No. Currency conversion currently uses fixed reference rates for rough estimates only. Rates are not updated live and should not be used for financial decisions. Please verify current exchange rates with a bank, payment provider, or official market source.
Is there a file size limit for conversions?
Yes. Server-side file conversions and transcription uploads are limited to 4 MB on the deployed site. Browser-only conversions may handle larger files depending on your device and browser memory.