Free Online File Converter & AI Tools
Convert videos, audio, images, PDFs and GIFs online — instantly and for free. 77 tools including AI background remover, transcription, image upscaler, and more.
No credit card required · 10 free conversions per day
77
Free Tools
4
Categories
10M+
Files Processed
100%
Free to Start
Most Popular Tools
The tools people use most every day
Video Converter
Convert videos between MP4, AVI, MOV, MKV and more formats instantly.
Audio Converter
Convert audio files between MP3, WAV, FLAC, AAC and other formats.
MP4 to MP3
Extract audio from MP4 videos and save as high-quality MP3.
Image Converter
Convert images between PNG, JPG, WEBP, GIF, BMP and more formats.
PDF Converter
Convert PDF files to Word, JPG, PNG, EPUB and many other formats.
PDF to Word
Convert PDF files to editable Word documents (.docx) while preserving formatting.
Everything in one place
Four powerful categories — 81+ tools total
How it works
Convert any file in 3 simple steps
Upload your file
Drag & drop or browse to select your video, audio, image, PDF, or GIF.
Choose settings
Pick your output format or let our AI tools handle the processing automatically.
Download instantly
Your file is ready in seconds. Download it directly — no email required.
Why choose Zestools?
Built for speed, privacy, and simplicity
Blazing Fast
Files processed in seconds on our high-performance cloud infrastructure.
Secure & Private
Files are deleted immediately after conversion. We never store your data.
Works Everywhere
No installation required. Works on any browser, desktop, or mobile device.
Always Available
99.9% uptime. Convert files any time, day or night.
No Registration
Start converting immediately — no account needed for the free plan.
AI-Powered
Advanced AI for background removal, transcription, image upscaling, and more.
Simple, transparent pricing
Start free — upgrade when you need more
Free
50 credits / month
- 50 credits per month
- Access to all basic tools
- Max file size: 100 MB
- Standard processing speed
- Watermark on video outputs
Starter
500 credits / month
- 500 credits per month
- Access to all AI tools
- Max file size: 500 MB
- Priority processing speed
- No watermark
Pro
1,500 credits / month
- 1,500 credits per month
- Access to all AI tools
- Max file size: 2 GB
- Fastest processing speed
- No watermark
Business
4,000 credits / month
- 4,000 credits per month
- Access to all AI tools
- Max file size: 10 GB
- Dedicated processing
- No watermark
- Priority support
- 5 team seats
Frequently Asked Questions
Start converting for free — right now
No account needed. No installation. Just upload your file and get your result in seconds.