Memdex — Save your AI conversations. Use them everywhere. vs Speech To Markdown: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Memdex — Save your AI conversations. Use them everywhere. and Speech To Markdown — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Memdex — Save your AI conversations. Use them everywhere.
Memdex
Auto-saves AI conversations across ChatGPT, Claude, and Gemini with local-first storage and searchable reuse.
Key features
- Auto-Save Across Platforms: Continuously captures conversation transcripts from major chat interfaces (ChatGPT, Claude, Gemini) so users don’t lose context across sessions or browser tabs.
- Local-First Storage: Stores all saved conversations on the user’s device (100% local storage) to eliminate vendor lock-in and reduce privacy exposure.
- Searchable Indexing: Builds a keyword/semantic index of saved chats to quickly locate relevant past exchanges, prompts, or project-specific context.
- Context Reuse & Injection: Allows users to bring selected past messages or threads into new chats or agents to preserve continuity and avoid re-telling context.
- Cross-Platform Connectors: Integrates with multiple chat providers through browser-level connectors/extensions to capture and surface memory everywhere the user interacts with an LLM.
- Organization Tools: Lets users tag, group, or filter saved conversations so project-related context can be surfaced rapidly when needed.
- Automatic capture and save of conversations across ChatGPT, Claude, and Gemini
- 100% local storage of conversation data (no cloud persistence)
- Searchable indexed archive to find and reuse past chat context
- Cross-session and cross-tool context retrieval to restore or continue workflows
- Local-first architecture to avoid vendor lock-in and preserve privacy
- Intended browser-level integration/extension to hook into chat providers
Best for
- Recovering Work Context After Session Loss: Restore conversation state and relevant details when an AI chat session is lost, crashed, or cleared.
- Ongoing Project Continuity: Maintain and reuse project-specific prompts, decisions, and background across multiple AI chat providers without repeating setup.
- Privacy-Sensitive Knowledge Storage: Keep private chat history and research locally rather than in a cloud service, meeting privacy or compliance needs.
- Cross-Tool Prompt Reuse: Extract and re-inject effective prompts or examples from past chats into new conversations on other platforms to speed iteration.
- Research and Note Consolidation: Index and search findings, suggestions, and outputs from multiple AI sessions to compile notes, summaries, or action lists.
- Restoring lost or interrupted chat context across sessions and devices
- Reusing previous conversation snippets or instructions when starting new chats
- Privacy-sensitive workflows that require local-only storage of chat history
- Developers and knowledge workers managing multiple project conversations across different chat providers
- Providing agents with persistent local memory to improve continuity across interactions
Speech To Markdown
xajik
Free, 100% local macOS menu-bar app that turns speech into structured markdown using whisper.cpp and any local LLM.
Key features
- 100% Local Pipeline: Runs whisper.cpp for speech-to-text and any local LLM server for structuring — no cloud calls and no API keys required.
- Global Dictation Hotkey: Press ⌘⌥] in any app to have the transcript typed straight at your cursor, works in Terminal, browser, Slack, and more.
- Agent Mode Live Structuring: A floating capsule streams your voice through the LLM into a real-time Markdown, plain text, or HTML document.
- One-Line Install: A single curl-piped script installs xcodegen, whisper-cpp, and ffmpeg via Homebrew, then builds the app from source into /Applications.
- iOS Companion: A fully offline iPhone/iPad app that uses Apple Intelligence on iOS 26+ (iPhone 15 Pro and up).
- Multiple Output Formats: Format, edit, or append the LLM output as Markdown, plain text, or HTML from a single control panel.
- Send-Now Flush: The Send (⏎) control flushes the current buffer to the LLM immediately instead of waiting for the pause/word-count threshold.
- Model Picker: Download and swap Whisper models from Settings — Base (~150 MB) is a good starting point.
Best for
- Private Meeting Notes: Dictate meeting recaps on a Mac with sensitive content that must never leave the device.
- Voice-Driven Coding Comments: Speak function docstrings or PR descriptions into your editor at the cursor via Global Dictation.
- Structured Journaling: Use Agent Mode to ramble freely and get a clean, headed Markdown document out in real time.
- Offline Field Notes on iOS: Capture voice notes on an iPhone with no signal, structured into markdown using on-device Apple Intelligence.
- Slack / Email Long-Form: Dictate long replies straight into Slack or Mail without opening a separate transcription tool.