Products

Claper

Turn slides into a live conversation.

claper.co Source★ 138AGPL-3.0Design / Presentations

AI Benchmark
Desktop
Mobile
Monthly visits
<5K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$2.69/mo
Lower than 97% of peersNiche median $10.69/mo
Creators
Alexandre Lion
@alxlion_· 644 followersCo-created with alex lion
Launched
4y ago
2022-05-06 · Est.

Traffic

Monthly visitsData through Oct 2026
Events5 changes

Marketing moves

Launches, search & content, referrals, promotions
  • Launched on Product HuntLaunch

    The ultimate tool to interact with your audience

    Jan 12, 2024 · 2y agoLaunch page

  • Launched on Show HN (4 pts)Launch

    Claper – a Slido open-source alternative made with Elixir — If you already know Slido, AhaSlides or Mentimeter, there is no solid open-source alternative to these tools. This is why I want to help p…

    Sep 1, 2023 · 3y agoLaunch page

  • Launched on BetaListLaunch

    Claper – The ultimate tool to interact with your audience — The ultimate tool to interact with your audience

    May 6, 2022 · 4y agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Show HN
2023-09-01Source
Post excerpt:
If you already know Slido, AhaSlides or Mentimeter, there is no solid open-source alternative to these tools. This is why I want to help public speakers and those who have to make their presentation interactive through live messages/Q&A and polls. Proudly powered by Elixir for the best performances, feel free to contribute to the project or just add a star o

Open Source & Self-Hosting

GitHub · MCP / Skill
Last commit 2026-10-22
GitHub Stars
★ 138
Forks
33
License
AGPL-3.0
Primary language
Go

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct39%
  • Organic Search31%
  • Referrals11%
  • Social6%
  • Other13%

Countries

  • United States100%

Search

Domain authority —Domain registered 2021-10-05

KeywordMonthly volume
claper2,160

Traffic data: Vaneform

Pricing

Small
€0per event
Up to 10 attendees · 5 MB presentation size · Unlimited interactions
Medium
€2.49per event
Up to 100 attendees · 30 MB presentation size · Data exports · Event reports
Large
€4.49per event
Up to 200 attendees · 100 MB presentation size
Huge
€6.99per event
Up to 500 attendees · 300 MB presentation size · Priority support

Trial: None · Observed 2026-11-04 · Source page

Entry price $2.69/mo, Lower than 97% of peers; “Presentations” median is $10.69/mo.View pricing benchmark

Pages & changes

Tracked since 2024-01-12

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Homepage headline (H1) changed to “Turn slides into a live conversation.”Positioning

    THE ULTIMATE TOOL TO INTERACT CREATE POLL 50% ❤️ 👏 💯 🙌 ✓ EVALUATE ✗ KNOWLEDGE SEND MESSAGE AND A...→Turn slides into a live conversation.

    At the time: <5K visits/mo4 concurrent moves
  2. Nov 1 · 13d ago

    Removed technology: BunnyFeatures

    Bunny→—

    At the time: <5K visits/mo4 concurrent moves
  3. Nov 1 · 13d ago

    Removed technology: Microsoft ClarityFeatures

    Microsoft Clarity→—

    At the time: <5K visits/mo4 concurrent moves
  4. Nov 1 · 13d ago

    Adopted technology: PostHogFeatures

    —→PostHog

    At the time: <5K visits/mo4 concurrent moves
  5. Nov 1 · 13d ago

    Removed technology: UmamiFeatures

    Umami→—

    At the time: <5K visits/mo4 concurrent moves

Design

First-screen visual analysis & :root CSS

Gradient Glow (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“Turn slides into a live conversation.”

Split Copy & Visual hero structure paired with start free / sign up CTA and customer / press logo strip.

Conversion path: Split Copy & Visual + Product UI Screenshot / Component → Start Free / Sign Up · Trust bar: Customer / Press Logo Strip

Palette · click to copy

5-D design score7.9 / 10
Typography
8.0
Color & Contrast
8.0
Layout & Spacing
8.0
Craft & Polish
8.0
Distinctiveness
7.0

Structure

Fonts
Plus Jakarta Sans
Primary visual
Product UI Screenshot / Component
Conversion CTA
Start Free / Sign Up
Social proof
Customer / Press Logo Strip
Navigation
Full-Width Top Bar
Theme & density
Light · Balanced
Corners & depth
Large Radius · With shadow
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Gradient Glow (with Soft & Friendly)

Luminous radial glows and translucent glass panels, widely used across modern AI products.

## Design Tokens

```css
:root {
  --background: #f8f0fa;
  --surface: #ffffff;
  --foreground: #160c55;
  --muted-foreground: #898399;
  --accent: #8a14e8;
  --radius: 16px;
  --font-heading: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #F8F0FA (~69%) · Surface #FFFFFF (~12%) · Text #160C55 (~8%) · Muted Text #898399 (~6%) · Accent #8A14E8 (~5%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Light · Balanced
- Border radius & elevation: Large Radius; use elevation shadows to separate layers
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Start Free / Sign Up · Trust bar uses Customer / Press Logo Strip
- Headline hook: Pain Relief & Replacement
- Hero components: Large Hero Product Shot, Customer Logo Wall, Metrics Strip
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and customer / press logo strip.
- Visual summary: Gradient Glow (Light canvas, balanced density) featuring split copy & visual layout and product ui screenshot / component visuals.

## Avoid

- Muddy low-contrast text over gradients
- Overuse of full-screen rainbow backgrounds
- Cluttered dense tables in the hero

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.

Questions & evidence

How much does Claper cost?
Small: €0per event; Medium: €2.49per event; Large: €4.49per event; Huge: €6.99per event. Observed 2026-11-04. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does Claper get?
Vaneform estimates <5K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Claper and what platforms does it support?
Claper is catalogued under Presentations: Turn slides into a live conversation.. Supported platforms: Web.
Is Claper open source?
Claper has a public repository (https://github.com/ClaperCo/Claper) under the AGPL-3.0 license, recording 138 GitHub stars.Source

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