DeepL
Sign-up optional
DeepL
50,000 characters of text per month, 1 document per month (up to 5 MB) and image translation up to 1,500 characters per day.
checked Oct 17
Free AI for translation
For free text and document translation, DeepL has the clearest quota; chatbots help adapt the tone and explain idioms.
Tip to stretch the free limit
Translate with DeepL, then ask a chatbot to check the tone (formal or casual) and flag anything that sounds off.
Ready-to-copy prompt
Translate this into [language] with a natural, professional tone. Then list any expressions that have no direct translation and how you handled them.
The picks, in the order we'd try them
Google
Sign-up optional
Gemini
Standard usage limits refresh every 5 hours up to a weekly cap, with no usage numbers published. Context window of 32k tokens. Deep Research may be unavailable at peak demand.
checked Oct 17
OpenAI
No sign-up
ChatGPT
Everyday text chats with no fixed message cap (with abuse protection). File uploads, image creation, voice and deep research are limited, with no numbers published.
checked Oct 16 · ⚠
Microsoft
Account needed
Microsoft Copilot
A limited free version that depends on available capacity, with no numbers published. When you hit the limit, you wait or upgrade.
checked Oct 17
Anthropic
Account needed
Claude
A usage limit per session that resets every 5 hours; the exact number isn't published. Pro gives at least 5× more usage. No image generation.
checked Oct 16
Other tasks
Updated