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<title data-rh="true">Buffer Memory | LangFlow Documentation</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://langflow.github.io/buffer-memory"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="Buffer Memory | LangFlow Documentation"><meta data-rh="true" name="description" content="For certain applications, retaining past interactions is crucial. For that, chains and agents may accept a memory component as one of their input parameters. The ConversationBufferMemory component is one of them. It stores messages and extracts them into variables."><meta data-rh="true" property="og:description" content="For certain applications, retaining past interactions is crucial. For that, chains and agents may accept a memory component as one of their input parameters. The ConversationBufferMemory component is one of them. It stores messages and extracts them into variables."><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://langflow.github.io/buffer-memory"><link data-rh="true" rel="alternate" href="https://langflow.github.io/buffer-memory" hreflang="en"><link data-rh="true" rel="alternate" href="https://langflow.github.io/buffer-memory" hreflang="x-default"><link rel="stylesheet" href="/assets/css/styles.637935cb.css">
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class="breadcrumbs__link" itemprop="name">Buffer Memory</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Buffer Memory</h1><p>For certain applications, retaining past interactions is crucial. For that, chains and agents may accept a memory component as one of their input parameters. The <code>ConversationBufferMemory</code> component is one of them. It stores messages and extracts them into variables.</p><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="️-langflow-example">⛓️ LangFlow Example<a href="#️-langflow-example" class="hash-link" aria-label="Direct link to ⛓️ LangFlow Example" title="Direct link to ⛓️ LangFlow Example"></a></h2><div class="zoomable-image"><img src="/img/buffer-memory.png" alt="Docusaurus themed image" class="themedImage_ToTc themedImage--light_HNdA zoomable-image-inner"><img alt="Docusaurus themed image" class="themedImage_ToTc themedImage--dark_i4oU zoomable-image-inner"></div><h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="download-flow"><a target="\_blank" download="" href="/json_files/Buffer_Memory.json">Download Flow</a><a href="#download-flow" class="hash-link" aria-label="Direct link to download-flow" title="Direct link to download-flow"></a></h4><div class="theme-admonition theme-admonition-note alert alert--secondary admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>LangChain Components 🦜🔗</div><div class="admonitionContent_S0QG"><ul><li><a href="https://python.langchain.com/docs/modules/memory/how_to/buffer" target="_blank" rel="noopener noreferrer"><code>ConversationBufferMemory</code></a></li><li><a href="https://python.langchain.com/docs/modules/chains/" target="_blank" rel="noopener noreferrer"><code>ConversationChain</code></a></li><li><a href="https://python.langchain.com/docs/modules/model_io/models/chat/integrations/openai" target="_blank" rel="noopener noreferrer"><code>ChatOpenAI</code></a></li></ul></div></div></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/conversation-chain"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Conversation Chain</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/midjourney-prompt-chain"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">MidJourney Prompt Chain</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#️-langflow-example" class="table-of-contents__link toc-highlight">⛓️ LangFlow Example</a><ul><li><a href="#download-flow" class="table-of-contents__link toc-highlight"><a target="_blank" href="json_files/Buffer_Memory.json" download>Download Flow</a></a></li></ul></li></ul></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2023 Logspace.</div></div></div></footer><div style="background-color:#010810" class="ms-rotate-0 ms-fixed ms-bottom-4 ms-right-8 ms-z-[100] ms-flex ms-flex-col ms-items-center ms-justify-center ms-rounded-md ms-p-2 ms-transition"><div class="ms-rotate-0 ms-flex ms-h-full ms-w-full ms-transform ms-cursor-pointer ms-items-center ms-justify-center ms-rounded-full ms-transition-all ms-delay-75 ms-duration-100 ms-ease-in-out"><div style="color:#ffffff;font-size:22px;width:48px;height:48px;margin:0px;padding:0px;display:flex;align-items:center;justify-content:center;text-align:center"><img src="img/chain.png" style="width:40px"></div></div><div style="color:#ffffff" class="ms-rounded-md ms-bg-white ms-bg-opacity-10 ms-p-1 ms-text-base ms-text-sm ms-transition-all ms-delay-75 ms-mt-2 ms-scale-100">CTRL + K</div></div></div>
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