Answers
Each page answers one question in its first two sentences, then shows the detail, including where Blab Translation is the weaker choice. Claims about other products come from their own public pages, linked under each article.
Best Chrome extension to translate manga
Blab Translation redraws manga pages with the translation in the bubbles. How it compares with Immersive Translate, IsManga, Ichigo and Torii.
Translate a PDF and keep its formulas
Blab Translation leaves formulas exactly as printed and keeps layout, tables and captions in place. What DeepL, Google and Immersive Translate do.
A good alternative to Immersive Translate
Blab Translation covers bilingual web pages, PDFs, ebooks, manga, image text and YouTube subtitles, free for web pages. Where it is the weaker choice.
Translate with your own API key
Blab Translation translates web pages with your own OpenAI, Claude, Gemini, DeepSeek or OpenRouter key, or a local model — free, no account.
Blab Translation vs Immersive Translate
Both translate web pages, PDFs, ebooks, manga and subtitles. Blab is free for web pages and keeps PDF formulas; Immersive has more engines and video sites.
Blab Translation vs DeepL
DeepL translates selected text and documents; Blab Translation translates whole pages bilingually for free, plus manga, subtitles and PDFs with formulas.
Blab Translation vs Google Translate
Google's extension translates highlighted text; Chrome replaces whole pages. Blab Translation keeps the original beside the translation, and does PDFs.
Blab Translation vs manga translators
IsManga, Ichigo and Torii translate comics only. Blab Translation redraws manga pages too, and also translates the rest of the web, PDFs and subtitles.