Opportunities › Client-side collaborative presentation software › Proposed app
Deckfile
Slides in one HTML file. Edit, present and co-edit with no login or upload.
- Score
- 52
- confidence 69
- Evidence
- 8
- items on the page
- Rivals
- 3
- named in sources
- First version
- 45 d
- estimate
- Type
- Desktop and mobile
- PWA: on computers and phones alike
- Market since
- 1987
- Mature market · AI estimate
ScreensConcept
Desktop and mobile: Presenters compose slides at a desk but present and review on any device; teams set up and edit on computers, then present on phones or tablets. Sample screens on a computer and a phone, in the proposed brand. Their numbers are sample data.
Quarterly review
Saved in fileSlide 4 of 12
About this appAI proposal
Deckfile is a presentation editor that lives in a single HTML file. Open it in any browser and you can write slides, present, print to PDF and edit with teammates. There is no account, no install and no upload. After the first load it works offline.
It is made for teams and professionals who want to share a deck the way they share a document, and for people who already build slides with web code but find small edits slow by hand or through an AI assistant. Deckfile gives them a visual editor over the same kind of file.
Your slides stay on your devices. Live co-editing connects browsers directly to each other, and the paid tiers add optional sync, templates and team controls. The file is yours to keep, send or archive.
- Tagline
- Your whole deck, in one file you own.
- Voice
- PlainCalmDirect
- Why this name
- Deck is the thing you present; file is the thing you keep. Two plain words that say the product is a deck in a file.
In the first version
Members say which features they would use. It tells PWAS what people want; it changes no score.
One self-contained file
The editor and your slides are saved together as one .html file. Email it, drop it in a drive, or open it from a USB stick.
No member yet
Works offline
After the first load, editing, presenting and printing need no connection. Nothing is sent to a server unless you switch on sync.
No member yet
No login to edit or view
Open the file and start. Collaborators join with a link or a short code, without creating accounts.
No member yet
Live co-editing
Browsers connect directly to each other so a team can edit the same deck at once, with visible cursors and change marks.
No member yet
Brand identityAI proposal
Check the name against trademark registers before using it.
Palette
#FAF6EEPaper · surface#1F2A30Ink · text#1E5B4FPine · primary#D9622BEmber · accent#E8DFCCSand · secondary surface#4C8DA6Sky · data
Typography
Aa
Deckfile
PricingAI proposal
PowerPoint's pricing page lists paid plans from $9.99 to $19.99 a month plus a free plan. Google Slides shows prices on request. Tiers are set below that range as a starting point to test.
Free
Free
- Single-file editor
- Present and print
- Offline use
- Direct co-editing for 3 people
Pro
$8 a month
- Template library
- Encrypted device sync
- Unlimited co-editors
- Version history
Team
$14 a month
- Per member price
- Shared templates
- Member management
- Brand locks
- Priority support
What it could be worthEstimate
What a software business making this much sells for today, from real deals. Pick a monthly revenue.
If it makes
Worth about
$194,000
Sale range $132,000 to $263,000
$120,000 a year in revenue
From 87 software businesses listed and sold on Empire Flippers in the last year, revenue vetted by the broker: they sell for about 19× their monthly revenue, most between 13× and 26×.
Measured on profit, the middle deal is 32× monthly net profit: about 2.7 years of profit.
An estimate, not an offer or financial advice. A real price depends on profit, growth, churn, how much of the work is the owner's, and the buyer.
How it would growAI proposal
How the product would reach new customers through its own use, and how the first ones would be found. A plan to test, not a result.
- Built-in loop
- Shared outputs. Every deck is a file or link sent to colleagues and clients. Opening it shows the viewer and a small Made with Deckfile mark; an Edit button lets recipients start editing the same file.
- Do they become customers?
- Recipients can become users right away since there is no sign-up, but few may become payers. Test how many viewers press Edit and how many of those later buy Pro or Team.
- First customers
- Small remote teams of 3 to 15 people, such as consultancies and startups, who share decks often and care about keeping client data off third-party servers.
- Where to reach them
- Hacker News and developer forums: Post a Show HN with a live demo file. The source thread drew strong interest in single-file slides.
- AI coding communities: Offer a guide for turning AI-written HTML decks into editable Deckfile files.
- Privacy-focused consultancies: Reach out directly to small firms and offer a free team trial in exchange for feedback.
- First milestone
- Ten teams each use it for a real client deck, and five of them pay for Pro or Team within 60 days.
Why people already pay for this
- VerifiedHacker News post received 1033 points and 239 comments
- Public claimUsers currently struggle with editing code manually or through AI harnesses when making small changes to presentations built with web technologies
- Public claimSingle-file distribution eliminates friction for sharing and collaboration compared to traditional cloud tools
- Public claimOffline capability is valued by users who want to avoid cloud services and continuous connectivity requirements
Tech stack
Every proposal builds on the same PWA base, installable from the browser on any phone or computer. Dashed boxes are what this app adds.
- AppNext.js and TypeScript
- PWAManifest and service worker
- UITailwind CSS
- Data and authSupabase Postgres
- PaymentsStripe
- EmailResend
- HostingVercel
- This app · Peer-to-peer syncWebRTC with a CRDT libraryLets browsers co-edit directly so slide content need not pass through a server.
- This app · Signalling relayLightweight WebSocket relayA small service to pair browsers by short code; it never sees slide content.
RisksAI inference
- TechnicalPeer-to-peer co-editing can fail behind strict company firewalls, and merging edits to one HTML file without conflicts is hard to get right.
- CommercialMany of the people who want a single file are used to free open-source tools and may not pay. Willingness to pay for sync and templates is untested.
- TechnicalA self-contained file that carries its own editor may be flagged or blocked by email and security scanners, and large images make files heavy.
- PlatformBrowsers may limit file saving, local storage or background use, which affects offline and save-in-place behaviour, especially on phones.
- CommercialGoogle Slides and PowerPoint are entrenched. Teams need PowerPoint import and export to switch, and fidelity will be imperfect.
Everything marked AI proposal or AI inference was written by a model from the evidence on the opportunity page. The proposed name must be checked against trademark registers before it is used.