speaker
Open-source Codex skill that converts .pptx decks into evidence-grounded, pause-paced speaker notes.
If you regularly present from dense, visual-heavy PowerPoint decks and are comfortable with a terminal, Speaker delivers grounded, time-budgeted notes that no other free tool matches. The Codex/CLI prerequisite is real friction—this is not for casual users. For a GUI alternative, consider tools like Microsoft's built-in Designer, but they won't give you the same evidence chain. For a simpler path, Microsoft's built-in Designer or AI presentation assistants prioritize convenience over slide-element fidelity.
Verified 19h ago · liveness 64/100 · cite: rightaichoice.com/tools/speaker
- Academics preparing lecture scripts for complex PowerPoint decks with charts, SmartArt, and images
- Researchers who need evidence-grounded notes from visually-rich presentations
- Professionals creating speaker notes for training or conference talks with technical slides
- Users comfortable with command-line and Codex (Claude Code) skills
- Non-technical users who prefer plug-and-play GUI tools
- Quick one-off note generation without manual setup or review
- Decks requiring real-time collaboration or cloud sharing
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Skip Speaker if you are not comfortable with the command line and setting up a Codex client like Claude Code, or if you expect a GUI, one-click note generation, or cloud-based presentation workflows.
Requires a Codex client (e.g., Claude Code) which may have usage fees or a subscription, though Speaker itself is free.
Speaker is completely free (MIT license) with no usage limits, which is ideal for individual academics, researchers, and open-source enthusiasts who can handle CLI and Codex setup. Compared to commercial speaker-note tools that charge per user or per deck, Speaker offers unlimited local use at zero cost, but the trade-off is manual setup and a steeper learning curve. For teams needing GUI and support, paid alternatives like Microsoft 365 (with Designer) or AI presentation assistants cost more
In short
speaker — Open-source Codex skill that converts .pptx decks into evidence-grounded, pause-paced speaker notes. Best for Academics preparing lecture scripts for complex PowerPoint decks with charts, SmartArt, and images, Researchers who need evidence-grounded notes from visually-rich presentations, Professionals creating speaker notes for training or conference talks with technical slides. Free to use.
What people actually say about speaker — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
139 mentions across 7 sources (Hacker News, YouTube, App Store, Bluesky, Stack Overflow, GitHub, Lemmy) · researched Jun 18, 2026.
- +Free and open-source under MIT-style license.
- +Specifically designed for academic and technical presenters.
- +Extracts content from charts, SmartArt, tables, and images via OCR.
- +Injects speaker notes directly into PowerPoint notes pane.
- +Combines text extraction, page rendering, and vision review.
- −No community feedback or reviews to validate any feature.
- −High risk of inaccurate content extraction from complex slides.
- −Requires GitHub Copilot environment and setup.
- −No user support channel or documentation beyond GitHub README.
- −Unclear performance with non-English PPTX files.
- • Requires GitHub Copilot subscription for runtime environment
- • No free support or professional services
Viability Score
How well maintained and how widely used is speaker? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: August 2026
How we score →Key Features
- Text extraction from titles, body, placeholders, and text boxes
- Table extraction with row and column data
- Native chart reading (titles, categories, series, values, axes, legends)
- OOXML fallback for SmartArt and grouped-shape text
- Slide rendering to PNG for visual inspection
- Region-scoped OCR for pictures and media (--ocr-scope image-regions)
- Vision review packet for agent or human review
- Evidence chain linking spoken notes to slide elements
- Inject speaker notes into PPTX notes pane
- Generate rehearsal document (DOCX or Markdown)
- Pause-aware pacing model (~110 wpm English, ~165 chars/min Chinese)
- Per-slide word budget computation
- Glossary table toggle on/off
- Compact extraction mode (--mode compact)
- Claude Code compatibility via .claude/skills/ppt-speech-writer
About speaker
Speaker is a free, open-source (MIT) Codex skill designed for academic and professional presenters who need speaker notes deeply tied to their actual slides. It processes a real .pptx file by combining text extraction, PPTX structure parsing, slide rendering, OCR, and vision review to generate page-by-page speaker notes that link each spoken sentence to visible slide elements—titles, body text, tables, charts, SmartArt, images, and OCR-identified text. The notes are written into PowerPoint's notes pane, and a rehearsal document (DOCX or Markdown) is also generated. Version 0.8 introduces a pause-aware pacing model that targets ~110 words per minute for English and ~165 characters per minute for Chinese, along with a per-slide word budget, a glossary toggle, compact extraction mode, region-scoped OCR, and a compact vision-review packet. These updates fix earlier overrun issues where a supposed 15-minute script ballooned to ~1,800 words and ran ~30 minutes; now a 15-minute talk targets roughly 1,300–1,400 words. Speaker is built for users comfortable with command-line tools and Codex (Claude Code). It requires a Codex client to set up and operate, runs entirely locally from a .pptx file, and has no cloud dependency. Compared to generic note generators, Speaker's evidence chain ensures each spoken sentence ties to concrete slide content, making it especially robust for visually complex slides with charts, tables, screenshots, and SmartArt. However, its CLI-only nature and Codex prerequisite put it out of reach for non-technical users seeking a one-click solution.
Behind the Verdict
Speaker fills a niche that mainstream presentation tools ignore: generating speaker notes that are verifiably anchored to every visual element in a slide. Most note generators only read text boxes, missing charts, images, and SmartArt. Speaker's pipeline—structured extraction, PNG rendering, OCR, vision review, and evidence linking—ensures that when you say 'as you can see in this chart,' the numbers actually match. This is a genuine strength for academics, researchers, and trainers who present data-heavy material. The v0.8 update is a substantive improvement. With word budgets and pause pacing, a 15-minute talk now stays near 1,300–1,400 words, versus the earlier overrun to ~1,800 words. This matters for anyone recording talks or adhering to strict time limits. The glossary toggle and compact modes also reduce noise in big decks. However, the tool is not for everyone. You need a Codex client (Claude Code) and comfort with CLI. There is no GUI, no cloud sync, no real-time collaboration. Setup and review take manual effort. While it's free (MIT), the learning curve is steep for non-technical users. If you're a casual presenter with simple slides, you're better off with Microsoft's built-in notes or a quick AI assistant. If you need evidence-backed, budgeted notes from complex decks and don't mind the terminal, Speaker is hard to beat—and it's free.
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Real-world workflow fit
Concrete scenarios for the personas speaker actually fits — and what changes day-one when you adopt it.
Has a 50-slide deck with charts and images; needs notes that cite slide data accurately.
Outcome: Runs Speaker via Claude Code, gets page-by-page notes with word budgets, reviews and injects into PPTX.
Deck contains SmartArt and screenshots; wants a written script that references visual details.
Outcome: Uses Speaker's extraction and OCR to produce DOCX rehearsal notes, then edits for teaching style.
Needs a timed script under 20 minutes for a technical webinar with tables.
Outcome: Sets budget, generates notes with pauses, and uses timing table to keep within 20 minutes.
Use Cases
- Generate speaker notes for a 50-slide academic conference presentation with charts and images.
- Create a lecture script for a university course that includes SmartArt and embedded screenshots.
- Add missing speaker notes to a legacy PPTX deck that contains OCR-reliant scanned slides.
- Prepare a clean, fact-checked presentation script for a technical webinar with tables and axes.
- Produce bilingual speaker notes by using the tool then manually translating the output.
- Use the compact vision-review packet to let a vision-capable agent check slides for accuracy.
- Leverage the pacing model to keep a recorded talk within a strict time limit.
Limitations
- Speaker requires a Codex client (such as Claude Code) and command-line comfort; there is no GUI or one-click installer.
- As a skill, it depends on the underlying Codex environment and may have limited support or updates.
- OCR accuracy can vary with image quality, and the vision review step needs manual or agent oversight.
- There is no cloud sync or collaboration, and the output quality relies on the quality of the input .pptx file.
- The project is open source, so you may need to troubleshoot issues yourself; documentation is minimal beyond the README.
as of 2026-08-14
Verification history
We have re-verified speaker 10 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Showing the 6 most recent of 10 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published speaker tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Open Source (MIT)
$0
Ideal for
Individual academics, researchers, or developers who need free, unlimited local use and are comfortable with CLI and Codex setup.
What this tier adds
Starting tier: completely free with full source code access and self-hosted execution; no paid tiers exist.
Where the pricing makes sense
The company stage and team size where speaker's pricing actually pencils out — and where peers do it cheaper.
Speaker is completely free (MIT license) with no usage limits, which is ideal for individual academics, researchers, and open-source enthusiasts who can handle CLI and Codex setup. Compared to commercial speaker-note tools that charge per user or per deck, Speaker offers unlimited local use at zero cost, but the trade-off is manual setup and a steeper learning curve. For teams needing GUI and support, paid alternatives like Microsoft 365 (with Designer) or AI presentation assistants cost more
Setup time & first value
How long it actually takes to get something useful out of speaker — broken out by persona, not the marketing-page minute.
For a user comfortable with CLI and Codex: initial setup (cloning repo, installing dependencies, configuring Claude Code) takes 30–60 minutes. For a non-technical user: plan 2–4 hours to learn basics and troubleshoot. Running Speaker on a single deck takes about 10–20 minutes once configured.
Switching to or from speaker
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From manual note-taking: Use Speaker to auto-generate notes from your existing .pptx, then edit for personal style.
- ↗To Microsoft PowerPoint built-in notes: Export the generated notes and paste into PowerPoint's notes pane.
Integrations
Resources & Guides
Tutorials & Learning
Official links
Tools that pair well with speaker
Common stack mates teams adopt alongside speaker, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
Speaker vs Chili Piper
Choose Speaker if you are an academic or researcher needing accurate, offline speaker notes from complex PPTX files with vision verification. Choose Chili Piper if you are an enterprise B2B team seeking to convert anonymous website visitors into booked meetings instantly. They solve entirely different problems; the decision is about your core need: note generation vs. revenue conversion.
Speaker vs Audioeye
Speaker and AudioEye serve completely different purposes — one generates speaker notes from PPTX files offline, the other provides web accessibility compliance. For note-taking from complex slides, Speaker is a powerful free tool for technical users. For ADA/WCAG compliance, AudioEye is a paid enterprise solution. Your choice depends entirely on whether you need presentation notes or accessibility remediation.
Speaker vs Temporal Ai
These tools serve completely different needs. Temporal AI is for developers building resilient, long-running AI agents and workflows, while speaker is a niche open-source utility for generating speaker notes from complex PowerPoint decks. Choose Temporal if you need durable execution with fault tolerance; choose speaker if you are an academic preparing grounded script from visually dense slides. They are not direct competitors.
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