Free Text-To-Speech for 28+ languages & MP3 Download

What is ttsMP3?

ttsMP3 is an online text-to-speech service operated by EPSILON WEBCRAFTS LLC. Users can select a voice, enter text, listen to the result, and download the MP3 file, without the need to install any special software for audio conversion.

The platform separates regular voices from AI-generated voices into two separate sets of converters. The underlying suppliers, control methods, and daily usage limits for each type are different, so it is not possible to treat their functions as identical.

Main functions

Standard text-to-speech

Standard voices are provided by Amazon Polly and cover more than 28 languages as well as various regional accents. They are suitable for use in narrations, alerts, educational materials, and phone voice prototypes.

SSML voice control

Conventional converters allow SSML to be used to control pauses, emphasis, speed, pitch, whisper effects, and certain aspects of pronunciation. The tags must be in pairs and in the correct format; otherwise, the conversion may fail.

AI voice

The AI voice is powered by OpenAI’s text-to-speech technology, which aims to achieve a more natural rhythm. Users can use voice commands to adjust the style, tone, and emotion of the voice, but they cannot modify all pitch parameters in the same way as with conventional voices.

MP3 preview and download

After a successful conversion, you can listen to the audio on the web page and download it in MP3 format. Replaying the same audio file that has already been generated will not result in any additional character charges.

Multiple language and voice options

The standard list of voices includes Mandarin Chinese, English, French, German, Japanese, Korean, Spanish, and others. The AI converter supports another set of languages that can be recognized automatically, and the actual voices available may vary depending on the upstream suppliers.

Commercial use

The current licensing terms permit the use of MP3 files, whether generated for free or at a cost, in both commercial and non-commercial projects, including videos, websites, applications, presentations, and online courses. It is not mandatory to indicate “ttsMP3”.

Developer API

For the annual subscription plan, an API key can be requested by email. After the application sends the text and speaker parameters, the interface returns information on the status, the number of characters used, the remaining quota, and details about the MP3 file that has been generated.

Comparison between normal sound and AI-generated sound

Web page usage tutorial

1. Choose between a regular voice or an AI voice converter.
2. Select the language, accent, and speaker from the available list.
3. Enter a short test text to check the pronunciation of names, numbers, and abbreviations first.
4. Regular voices can incorporate supported SSML tags, while AI voices allow for the specification of tone instructions.
5. Start the conversion and wait for the player to display the results.
6. Listen to the speech pace, pauses, stress, tone, and proper nouns.
7. Modify the text or control parameters to generate the desired version once again.
8. Download the MP3 and save it, naming it according to the language, version, and purpose.
9. Before publishing, verify the copyright of the text, the permitted use of audio, and the rules of the target platform.

Price and character limit

The real-time amount displayed on the payment page is dynamically loaded by FastSpring based on the settlement region; it is not possible to determine the exact currency and price at this time. Only the confirmed amounts and billing periods are listed here, and the actual purchase cost should be as indicated on the payment page.

A failed conversion does not result in any characters being deducted, and repeated playback of the already generated audio is not subject to additional charging. The service can still be used until the end of the current payment period even after the subscription is canceled.

API integration process

1. Purchase the one-year plan and request an API key via the support email.
2. View the speaker list and select the fixed name corresponding to the language.
3. Store the keys on the server side; do not include them in the frontend pages.
4. Use GET or POST to submit the key, speaker, and text.
5. Parse the errors, character count, remaining quota, and MP3 information in the returned data.
6. Check whether the error field is zero before downloading or playing audio.
7. Implement retry and caching mechanisms for limits, network failures, and expired files.

Suitable for users and scenarios

• Video creators: Produce commentary, short videos, and channel narrations.
• Teachers and curriculum teams: Create multilingual teaching materials and online learning audio.
• Product team: Creates application sound effects, accessible text narration, and prototypes.
• Customer Service and Communications Team: Prepare IVR messages and notification voices.
• Developer: Use annual API access to integrate with websites or for internal automation.
• Individual users: Convert articles, scripts, or learning materials into MP3 format.

Advantages

• You can listen to a preview and download the MP3 without any installation required.
• Regular audio offers finer SSML control.
• AI voices support describing style and emotion in natural language.
• Both free and paid audio versions can be used for commercial purposes without the requirement to include attribution.
• One-time, monthly, and annual quotas are suitable for different project timelines.

Restrictions and Precautions

• The free character quota is limited, and the specific daily limit for AI voices has not been made public.
• Sounds and languages depend on upstream suppliers and may be changed at any time.
• Unescaped angle brackets or missing closing tags in SSML will cause failure.
• Synthesized speech may mispronounce names, abbreviations, numbers, and technical terms.
• The API is available only with the annual subscription plan, and a manual request is required to obtain the key.
• What is downloaded is the generated audio; no offline download of the sound model is provided.
• No official native mobile or desktop applications have been confirmed.

API, SDK, and open-source status

Privacy and security

The privacy policy explains that page visits, traffic data, location and communication data, as well as the information provided voluntarily during registration, purchases, and contact with support, are all handled. The website also uses cookies, and third-party advertising cookies may be used as well.

Data may be transferred to locations outside the EU for processing and storage. The policy does not specify exactly how long input text, MP3 files, logs, and cached data are retained.

• Do not submit passwords, client confidential information, or unpublished financial or health data.
• API keys are stored only on the server, and the text content in logs is restricted.
• Confirm the requirements for internal data processing and cross-border transmission before generating in batches.
• After downloading, set the access permissions and deletion schedule in your storage.
• If you notice any abnormalities with your account, change your password immediately and contact support.

Copyright, Commercial Use, and Refunds

The commercial use license addresses the authorization for using TTSMP3 to generate MP3 files; it does not replace other rights related to the input text, names of individuals, trademarks, music, or the platform on which the content is published. Using such technology to imitate real people or to mislead listeners can still result in legal and procedural issues.

Subscriptions can be canceled and remain valid until the end of their cycle; however, the current terms do not specify a clear universal deadline for refunds. It is necessary to review FastSpring’s payment conditions before making a purchase, and questions regarding refunds and taxes should be addressed to support.

Frequently Asked Questions

What is the free quota for ttsMP3?

The conventional voice allows a maximum of 3,000 characters per day. The AI voice has its own daily limit, though no specific figure is provided in the public FAQ.

Can the generated MP3 be used for commercial purposes?

Yes, the current license allows for the creation of audio content, both free of charge and for a fee, and it does not require attribution. It is still necessary to ensure that the text entered and the intended use are legal.

What is the difference between regular sound and AI-generated sound?

Conventional voices emphasize speed, pitch, and pronunciation control in SSML, while AI voices support more natural styles, tones, and emotional instructions.

Does a failed conversion deduct characters?

No. Characters are deducted only when the conversion is successful; replaying the already generated audio does not result in additional charges.

Which package includes the API?

The API is available as part of the annual plan; after purchase, a key must be requested by email.

Can sound models be downloaded for offline use?

No. Users can only download the resulting MP3 file; Amazon Polly and OpenAI’s voice models do not allow downloading.

What is the price?

The amount is displayed dynamically by the settlement system depending on the region, and it cannot be determined with certainty at this time. The currency, taxes, and total price shown on the purchase page should be taken as the reference.

Is refund support available?

The terms provided do not specify a clear and uniform deadline for refunds. It is necessary to check the refund policies of the payment processor before making a purchase and to keep a record of the order.

Summary

ttsMP3 is suitable for quickly converting multilingual text into downloadable audio tracks; conventional SSML and AI-based voice command options meet the two types of control requirements. Commercial licenses are useful for videos, courses, and application projects.

When choosing a payment plan, it is important to compare the character limit, validity period, and API permissions. When dealing with sensitive text, it is also necessary to verify the arrangements for data storage and cross-border processing.