Website	multiple languages	multiple voices	accents	effects	direct access to mp3(1)	remarks
Google Translate	✔	✘	✘		✘
Linguee	✔	✘	✘		✘	Words only.
Forvo	✔	✔	✔		✘	Words only.
Naturalreaders	✔	✔	✔	speed	✘	High quality.
IBM Watson Text to Speech	✔	✔	✔	speed, pitch	✘	High quality.
TTSdemo	✔	✔	✔	speed, pitch, duration, echo, reverb, flanger, phrase, bullhorn, whisper	✘	A maximum of 600 characters.
WordReference	✔	✘	✔	speed	✘	Words only.
TTSMP3	✔	✔	✔	speed, pitch, break, emphasis, whisper, conversations(2), others effects	✔	Input limit: 3,000 characters per day.
Voice Generator.io	✔	✔	✔	speed, pitch	✘	Different voices according to your browser.

(1): If there is no direct access to the mp3 file, you can use Video DownloadHelper (Firefox and Chrome) or Audacity to download the mp3.

(2): Possibility to switch between speakers within the text.