Simple & Transparent Pricing
Start for free. Upgrade when you need more power. Cancel anytime.
🎟️ 24-Hour Day Pass — €1.99 (One-Time)
Just need to convert heavy files today without a monthly subscription? Unlock up to 1 GB per file, 50-file batches, and ad-free priority cloud processing for 24 hours.
Free
Forever. No credit card.
- Up to 5 MB per file
- 1 free conversion per day
- 201+ formats
- No registration required
Starter
For regular users.
- Up to 250 MB per file
- Unlimited conversions
- No ads
- Faster processing
Pro
For power users.
- Up to 1 GB per file
- Unlimited conversions
- Priority processing
- Batch conversion
- No ads
Business
For heavy workloads.
- Up to 2 GB per file
- Unlimited conversions
- Priority processing
- Batch conversion
API
For developers.
- RESTful API access
- 5,000 conversions/month
- Up to 2 GB per file
- Webhook notifications
- Priority support
Automate 201+ Formats with 1 HTTP Call
Convert images, PDFs, Office documents, RAW photos, and 4K video streams via synchronous response or signed HMAC-SHA256 webhooks. Includes exact byte-cap (`max_output_bytes`), EXIF stripping, and PDF/A-2b archival flags.
curl -X POST https://kaijuconverter.com/api/v1/convert \
-H "Authorization: Bearer kj_live_98f2a4c1..." \
-F "file=@portrait.heic" \
-F "target_format=jpg" \
-F "max_output_bytes=102400" \
-F "strip_exif=true" \
-o portrait_100kb.jpgconst form = new FormData();
form.append('file', fs.createReadStream('invoice.pdf'));
form.append('target_format', 'pdfa');
form.append('ocr_lang', 'eng+spa+deu');
const res = await fetch('https://kaijuconverter.com/api/v1/convert', {
method: 'POST',
headers: { Authorization: 'Bearer kj_live_98f2a4c1...' },
body: form
});import requests
resp = requests.post(
"https://kaijuconverter.com/api/v1/convert",
headers={"Authorization": "Bearer kj_live_98f2a4c1..."},
files={"file": open("photo.jpg", "rb")},
data={"target_format": "webp", "max_output_bytes": 51200, "strip_exif": "1"},
)
open("photo_50kb.webp", "wb").write(resp.content)Why KaijuConverter Costs Up to 70% Less Than Competitors
Compare real file limits, transparent pricing, and built-in studio tools against CloudConvert, Convertio, FreeConvert, and Smallpdf.
| Feature / Plan | ⚡ KaijuConverter | CloudConvert | Convertio | FreeConvert | Smallpdf |
|---|---|---|---|---|---|
| ⚡ 24h Fast Pass / 7-Day Pass (No Sub) | ✅ €4.99 (24h) / €9.99 (7d) | ❌ None ($17 min) | ❌ None ($9.99/mo) | $12.99 (6.5×) | ❌ None ($12/mo) |
| ⚡ Entry Monthly Plan | ✅ €3 (€3) · 250 MB | $9.00/mo | $9.99/mo (500 MB) | $9.99/mo (1.5 GB) | $12.00/mo |
| 🚀 Pro 1 GB Plan + 50 Batch | ✅ €9 (€9) · 1 GB | $17.00+/mo | $15.99/mo (1 GB) | $14.99/mo | $12.00/mo (PDF) |
| 🔒 0s In-Browser Local Mode | ✅ Unlimited (Up to 100 MB) | ❌ Cloud upload only | ❌ Cloud upload only | ❌ Cloud upload only | ❌ Cloud upload only |
| 🎯 Exact Byte-Target (≤20/50/100 KB) | ✅ Binary-search exact cap | ❌ % | ❌ None | ⚠️ Approx. | ❌ 2 presets |
| 🌍 Native Multilingual UI & OCR | ✅ 12 Languages + 12 OCR | 1 (EN) | Multi (OCR $) | Multi | PDF only |
30-day money-back guarantee
Try Pro or API risk-free for 30 days. Not happy? Email us — we will refund the full amount, no questions asked.
Common questions
Can I cancel anytime? +
Yes — cancel from your dashboard with one click. No phone calls, no retention agents. Your plan stays active until the end of the billing period.
What happens if I exceed my quota? +
On the free tier, files over 5 MB or beyond 1 daily conversion are converted first on our servers and can be unlocked instantly with a €4.99 24h Fast Pass or €1.99 Single-File Rescue Pass.
Is the API rate-limited? +
API plans include 5,000 requests/month with bursts up to 60/minute. Enterprise plans get custom limits — contact us if you need more.
Do you delete my files? +
Yes — uploaded files are auto-deleted within 60 minutes for guests, 24 hours for registered users. Output files use the same retention. We never store training data from your conversions.
Can I get an invoice for my company? +
Stripe automatically generates a tax-compliant invoice for every charge. Add your company details + VAT number on checkout. EU customers get reverse-charge VAT handled automatically.