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MyMemory

MyMemory gives translators and developers access to a large translation memory, with machine translation used when no human translation match is available.

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mymemory.ai·Free + paid plans·Checked 2026-08-15

MyMemory screenshotMemory AIMemoryIntroducing OpenMemory MCPMyMemo
MyMemorymymemory.ai
MyMemory screenshot
MyMemorymymemory.ai

›What is MyMemory?

MyMemory is a translation memory service and API built around billions of words translated by professional translators, language service providers, customers, and multilingual web content. It searches its archive for matching segments and uses ModernMT machine translation when a human translation is unavailable. Users can also upload source documents and export customized translation memories.

›What are the pros and cons of MyMemory?

Strengths

Very large archive of professionally translated segments
Combines translation-memory matches with ModernMT machine translation
Supports TMX creation, export, merging, and querying
Provides a way to remove proper names and brands before contributing memories

Trade-offs

Translation quality can be inconsistent because results combine crowdsourced material with machine translation
The free API allowance is limited to 5,000 characters per day in one comparison
Paid API plans add per-word and bandwidth charges
The API counts source words differently for Chinese, Japanese, and Korean, using characters for those languages

›What are MyMemory’s key features?

Searches a public archive containing 9,686,272,738 professionally translated segments
Uses matching algorithms to find relevant translations and terminology
Falls back to ModernMT machine translation when no human translation is available
Accepts DOC, HTML, and RTF source documents for customized TMX memory creation
Supports creating, merging, querying, exporting, and downloading translation memories
Lets users hide proper names and brands before contributing stored segments

›What are the best use cases for MyMemory?

Finding existing translated segments and terminology for localization projects
Creating a customized TMX from a DOC, HTML, or RTF source document
Backing up and reusing translation memories across projects
Obtaining API translations when a professional human translation match is unavailable

›What is the pricing for MyMemory?

PlanPriceDetails
Basic$0.00 / mo10,000 requests and 10,000 words per month, with a hard limit and additional word and bandwidth charges.
Pro$299.00 / mo500,000 words per month, with a 10,240MB bandwidth limit and additional bandwidth charges.
Ultra$499.00 / mo1,000,000 words per month, with a 10,240MB bandwidth limit and additional bandwidth charges.

The RapidAPI listing states an additional $0.01 per word and $0.001 per 1MB bandwidth platform fee. A separate comparison lists a 5,000-character-per-day free allowance.

Checked 2026-08-15 · source

›Who is MyMemory best for?

translatorsA practical option for finding reusable terminology, building TMX files, and backing up translation memories.
developersUseful when an application needs an API that combines translation-memory matches with machine translation fallback.
small teamWorks for teams handling modest localization volumes that can manage API quotas and variable translation quality.
Not for
  • Teams requiring consistently controlled translation quality without reviewing machine or crowdsourced results
  • High-volume API users seeking predictable, low-cost character-based pricing
  • Buyers looking for a personal voice-memory AI rather than a translation service

›What are the best MyMemory alternatives?

DeepLChoose this instead if translation quality is the main priority rather than access to a large public translation memory.→DeepResearch→Waver→CapCut→

›Where can I try MyMemory?

Open mymemory.ai →
translationmachine translationhuman translationlocalizationlanguage tool

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