Honest Comparison

Langbly vs Google Translate
vs DeepL

Same API shape as Google Translate. Better quality than both. 81–90% cheaper than Google Translate.

No credit card required

Save 81–90% vs Google Translate

Real pricing comparison based on monthly character volume. Langbly includes overage at $4/1M — still cheaper than Google’s base rate.

Monthly VolumeGoogle TranslateDeepLLangblyYou Save
1M chars/mo$20$25$19
Save 5%+
5M chars/mo$100$125$19
Save 81–85%
25M chars/mo$500$625$69
Save 86–89%
100M chars/mo$2,000$2,500$199
Save 90–92%

Langbly prices based on plan pricing (Starter $19/5M, Growth $69/25M, Scale $199/100M). Google Translate at $20/1M. DeepL API Pro at $25/1M.

Translation quality, side by side

Real examples comparing English → Dutch translations. Notice the differences in locale handling, natural phrasing, and format preservation.

English → Dutch

The plan includes 20M characters per month and $3.97 per 1M overage.

Google Translate

Het abonnement bevat 20 miljoen tekens per maand en $3,97 per 1 miljoen overschrijding.

DeepL

Het plan omvat 20 miljoen tekens per maand en $3,97 per 1M overschrijding.

Langbly

Het plan bevat 20M tekens per maand en $3,97 per 1M overschrijding.

Why it matters: Langbly preserves the compact number format (20M) and keeps the pricing format intact.

English → Dutch

Click "Apply" to save your settings, then go back to the home page.

Google Translate

Klik op "Toepassen" om uw instellingen op te slaan en ga vervolgens terug naar de startpagina.

DeepL

Klik op "Toepassen" om uw instellingen op te slaan en ga vervolgens terug naar de startpagina.

Langbly

Klik op "Toepassen" om je instellingen op te slaan en ga terug naar de homepagina.

Why it matters: Langbly uses natural "je" (informal) instead of stiff "uw", and keeps "home" as "home" per Dutch web conventions.

English → Dutch

Speed: 120.5 km/h at 45.8°C ambient temperature.

Google Translate

Snelheid: 120,5 km/h bij 45,8°C omgevingstemperatuur.

DeepL

Snelheid: 120,5 km/u bij 45,8°C omgevingstemperatuur.

Langbly

Snelheid: 120,5 km/u bij 45,8°C omgevingstemperatuur.

Why it matters: Both Langbly and DeepL correctly use km/u (Dutch convention). Google keeps km/h (English).

Full feature comparison

An honest, detailed breakdown of what each provider offers.

FeatureGoogle TranslateDeepLLangbly
Price per 1M characters$20$25$3.80–$1.99
Free tier$300 credit500K chars/mo500K chars/mo
Annual discount20% off
Translation qualityNMT (2020)NMT + LLMContext-aware
Context-aware translationLimited
Formality control
HTML/XML preservation
Auto language detection
Batch requests
Google Translate v2 compatible
Drop-in migration-SDK rewriteChange 1 URL
Dutch locale rulesBasic
German locale rulesComing soon
Caching (built-in)7-day TTL
Rate limitingPer projectPer keyPer key + plan
Auth methodAPI key in URLAuth headerBearer token
GDPR-friendlyUS processingEU optionEU processing

Migrate in under 10 minutes

Langbly is a drop-in replacement for Google Translate v2. Same request format, same response shape. Change one URL and you’re done.

  • Same q, target, source, format parameters
  • Same response: data.translations[].translatedText
  • ISO 639-1 language codes, batch requests, HTML mode
translate.js
// Before (Google Translate v2)
- POST https://translation.googleapis.com/language/translate/v2?key=GOOGLE_KEY
// After (Langbly)
+ POST https://api.langbly.com/language/translate/v2
+ Authorization: Bearer LANGBLY_KEY
// Request body - identical
{ "q": "Hello world", "target": "nl" }
// Response - identical
{ "data": { "translations": [{ "translatedText": "Hallo wereld" }] } }

Better security by default

Google Translate puts your API key in the URL query string, which appears in server logs, browser history, and referrer headers. Langbly uses Bearer token authentication in the Authorization header — the industry standard for API security. Your keys never leak through URLs.

Ready to switch?

500K free characters. No credit card. Migrate in minutes.

Same API as Google Translate v2 — just change the URL.