Free Translate API

High-performance, low-latency machine translation API for developers — Supporting 39 Languages

Source Text 11 / 50
Translation Result
Supported Languages 39 Languages
All listed languages support bi-directional, mutual translation (Any-to-Any).
API Debug Console
cURL Command
Response (JSON) 
{
  "status": "idle",
  "message": "Waiting for request..."
}

Pay-As-You-Go Character Packages

Simple, transparent volume pricing. Buy larger packages for deeper discounts. All packages valid for 1 Year.

Instant Activation
Access Key issued immediately after purchase
No Registration
No account creation or profile required
Secure Checkout
Flexible & automated PayPal processing
1-Year Validity
Unused quota expires after 12 months
Character Quota Pricing
Volume (Million Chars) List Price Discount Final Price (USD) Action
1 M (1,000,000 chars) $7.00 Base Price $7.00 Buy Now
10 M (10,000,000 chars) $70.00 SAVE 5% $66.50 Buy Now
50 M (50,000,000 chars) $350.00 SAVE 10% $315.00 Buy Now
100 M (100,000,000 chars) $700.00 SAVE 15% $595.00 Buy Now
500 M Most Popular $3,500.00 SAVE 20% $2,800.00 Buy Now
1,000 M (1 Billion chars) $7,000.00 SAVE 25% $5,250.00 Buy Now
5,000 M (5 Billion chars) $35,000.00 SAVE 30% $24,500.00 Buy Now
10,000 M (10 Billion chars) $70,000.00 SAVE 35% $45,500.00 Buy Now
Note: Character quota is valid for 365 days from purchase date. Limit 5 requests/sec concurrently; max 2,000 characters per single API request.

Need Custom Solutions?

Have questions regarding high-volume enterprise packages or API integration guidance? Contact our technical team directly.

Email Support [email protected]
WeChat Support 13146556570

Frequently Asked Questions

Everything you need to know about API limits, billing, keys, and integration.

You can start testing immediately without registering an account. Simply use the default Access Key FREE in the Playground interactive console or send a POST request with "accessKey": "FREE" directly from your terminal or backend. The free tier allows testing with up to 50 characters per request.

To guarantee low latency and high availability for all developers:
  • Concurrency Limit: Maximum 5 concurrent requests per Access Key.
  • Single Request Limit: Up to 2,000 characters per request for paid Access Keys (50 characters max for the default FREE key).

Once your payment is confirmed via PayPal, our automated system generates your unique Access Key and delivers it directly to the email address you provided during checkout within minutes. Make sure to check your spam folder if it doesn't appear in your primary inbox.

All character packages are valid for 365 days (1 year) starting from the timestamp of purchase. Any unused quota remaining after 12 months will automatically expire.

Yes! All supported languages support full bi-directional, mutual translation. You can specify any supported language as the sourceLang and any as the targetLang.

Supported Languages List:

  • Arabic (ar)
  • Bulgarian (bg)
  • Bangla (bn)
  • Czech (cs)
  • Danish (da)
  • German (de)
  • Greek (el)
  • English (en)
  • Spanish (es)
  • Finnish (fi)
  • French (fr)
  • Hindi (hi)
  • Croatian (hr)
  • Hungarian (hu)
  • Indonesian (id)
  • Italian (it)
  • Hebrew (iw)
  • Japanese (ja)
  • Kannada (kn)
  • Korean (ko)
  • Lithuanian (lt)
  • Marathi (mr)
  • Dutch (nl)
  • Norwegian (no)
  • Polish (pl)
  • Portuguese (pt)
  • Romanian (ro)
  • Russian (ru)
  • Slovak (sk)
  • Slovenian (sl)
  • Swedish (sv)
  • Tamil (ta)
  • Telugu (te)
  • Thai (th)
  • Turkish (tr)
  • Ukrainian (uk)
  • Vietnamese (vi)
  • Chinese (zh)
  • Chinese (Traditional) (zh-Hant)

Because Free Translate API is a digital service delivered immediately upon purchase, all sales are final and strictly non-refundable. We strongly recommend using the FREE test key to verify quality and compatibility before purchasing.

No registration is required. You do not need to create an account or fill out profiles. You only need to enter an email address during PayPal checkout so we know where to deliver your Access Key.

Character consumption is calculated based on the length of the string sent in the text parameter of your HTTP POST request (including spaces and punctuation). Output characters in the response do not count towards your quota.

If a request exceeds 2,000 characters or if you initiate more than 5 requests concurrently, the API server will return an HTTP error response (e.g., 429 Too Many Requests or 400 Bad Request) with a descriptive JSON payload without deducting from your quota.

Each package purchase generates a new, unique Access Key so you can manage different projects independently. Your quota is bound to that key for 365 days. For enterprise volume packages over 10 Billion characters, please contact us via email at [email protected] WeChat 13146556570.