Haikit is a set of free online tools for QR codes, images, PDFs, audio, video and invoices. Your files stay on your device.
Images, PDFs, audio or video. We will show what you can do with it.
or paste one with Ctrl+V
Your file stays on your device.
Pick a tool, or go straight to the exact conversion you need. Every tool has a free tier.
Make QR codes for links, Wi-Fi, WhatsApp, menus and contact cards. Dynamic codes can be edited after printing and count every scan.
Open QR Code Generator
Free
Paid adds Pro
Resize, crop, rotate, compress and convert photos to the exact size or file size you need, such as 1080 × 1080 px or under 100 KB.
Open Image Tools
Free
Paid adds Pro
Merge, split, reorder and rotate PDFs. Turn images into PDFs, and PDFs into images, Word or Excel files.
Open PDF Tools
Free
Paid adds Pro
Convert audio between MP3, WAV, OGG, M4A, FLAC and Opus, or pull the audio out of a video, such as MP4 to MP3.
Open Audio Converter
Free
Paid adds Pro
Convert video between MP4, MOV, MKV, WebM, AVI and GIF. Shrink big videos and choose the resolution and quality.
Open Video Converter
Free
Paid adds Pro
Create professional invoices, quotes and receipts in any currency, with taxes and discounts, and download them as PDF.
Open Invoice Generator
Free
Paid adds Pro
Looking for something specific? Browse all converters
Pick the tool or the exact conversion you need, such as HEIC to JPG or MP4 to MP3.
Drop it in the box. It opens on your device and is never uploaded.
Check the preview, then download. Upgrade only if you need batches or bigger files.
Image, PDF, audio, video and invoice files are processed in your browser. They are never uploaded to Haikit.
Every tool has a free tier, and most need no sign-up. Pay only if you need batches, bigger files or dynamic QR codes.
It works in any modern browser on a computer or phone, with no app and no software to set up.
One tool is $5 a month. If you use several, all 6 tools are $20 a month billed yearly.
One tool costs $5 a month. All 6 tools cost $20 a month billed yearly, or $25 a month billed monthly.
Every tool, with generous limits.
$0
No sign-up for most tools
Unlock the paid features of the tool you use most.
$5 /month
for each tool you choose
All 6 tools, every paid feature.
$20 /month
Billed $240 once a year. Save 20% against monthly.
Paid plans are launching soon. Every tool is free to use today.
Haikit is a set of free online tools for making QR codes, resizing and compressing images, working with PDFs, converting audio and video, and creating invoices. Most tools work without signing up.
No, not for the image, PDF, audio, video and invoice tools. They run in your browser, so your files stay on your device. Dynamic QR codes are different: Haikit stores the web address they point to, so it can send people there and count the scans.
Yes. Every tool has a free tier. Paid plans add batch processing, bigger files, QR logos and colors, more dynamic QR codes and saved invoices.
One tool costs $5 a month. All 6 tools cost $20 a month billed yearly ($240 a year), or $25 a month billed monthly. Paid plans are launching soon.
Images between JPG, PNG, WebP and iPhone HEIC. Images to PDF, and PDF to images, Word and Excel. Audio between MP3, WAV, OGG, M4A, FLAC and Opus, including the sound from a video such as MP4 to MP3. Video between MP4, MOV, MKV, WebM, AVI and GIF.
No. Haikit works in the browser on Windows, Mac, Linux, iPhone and Android. Audio and video conversion downloads a converter of about 30 MB the first time, and your browser keeps it for next time.
Yes. All tools work in a phone browser. Long or high-resolution videos convert faster on a computer, because the conversion uses your own device.
You move to the free plan, which includes 1 dynamic QR code. One code of your choice keeps working and the others pause until you resubscribe. Static QR codes never expire.
Updated October 2026