
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Goodnotes records 3,227,341 monthly visits with +10.8% month-over-month growth and Freemium, Free Trial pricing. Perchance records 27,160,772 monthly visits with +4% growth and Free pricing.

Handwritten notes, PDF markup, and AI study tools on one canvas
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | goodnotes.com | perchance.org |
| Pricing Model | Freemium, Free Trial | Free |
| Monthly Visits | 3.23M (3,227,341) | 27.16M (27,160,772) |
| MoM Traffic Delta | +314.75K (+10.8%) | +1.06M (+4%) |
| Primary Market & Share | 🇺🇸 United States (33.8%) | 🇺🇸 United States (41.3%) |
| Direct Visits / mo | 1.64M | 15.56M |
| User Rating | 4.4 | 4.5 |
| Supported Platforms | Website | Website |

Handwritten notes, PDF markup, and AI study tools on one canvas
Low-latency ink with palm rejection, cross-out to erase, and handwriting-to-text conversion keeps writing close to pen on paper.
Import contracts, papers, or textbooks and mark them up by hand, with searchable annotations and clean exports.
Search across typed text, handwriting, and sketches, and turn notes into summaries, mind maps, or structured plans.
Work together in shared notebooks, documents, and whiteboards simultaneously, without version conflicts or file ping-pong.
Build and share random generators for free with lists and simple code
Define items as lists and let Perchance pick randomly, producing names, items, prompts or full paragraphs.
Customize how your generator looks and behaves with standard web markup, styling and scripts.
Publish generators instantly so anyone can open and use them from a shareable page.
Browse and reuse generators created by the community, from RPG tools to story prompts and AI apps.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

SpecialistTurns natural language descriptions into complete web apps and tools, but lacks Perchance's community-driven random generator template library.
SpecialistTurns natural language descriptions into complete web apps and tools, but lacks Perchance's community-driven random generator template library.

SpecialistBuilds and deploys full-stack applications with an AI agent, but is much heavier and less focused on instant random generators.
SpecialistBuilds and deploys full-stack applications with an AI agent, but is much heavier and less focused on instant random generators.
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.
SpecialistExcels at automatically generating flashcards and practice quizzes from study notes, but lacks freehand drawing features.
Generates high-quality frontend web components from natural language, but requires more technical setup than Perchance's lightweight text generators.
Generates high-quality frontend web components from natural language, but requires more technical setup than Perchance's lightweight text generators.

SpecialistTurns course materials into interactive AI study tools, but focuses less on handwritten digital notebooks.
SpecialistTurns course materials into interactive AI study tools, but focuses less on handwritten digital notebooks.

SpecialistStronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
SpecialistStronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
SpecialistConverts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
SpecialistConverts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
SpecialistExcels at generating long-form stories and roleplay text from prompts, but lacks Perchance's versatility for building custom web tools.
SpecialistExcels at generating long-form stories and roleplay text from prompts, but lacks Perchance's versatility for building custom web tools.