Whalefax

What it does

Kalshi, Polymarket and Robinhood do not send a 1099 for event contract trades, so the record you file in April is yours to build. Whalefax turns any of their exports into real P&L and per-position tax detail, with FIFO lot matching and fees in the right place. It also rebuilds any public Polymarket wallet, including the losing positions that leave no trace on chain. Free, no account, and it runs entirely in your browser so your trades are never uploaded.

Kalshi and Polymarket never send you a real tax form. Whalefax turns your trade history into a P&L dashboard and an IRS-ready report. Free, private, runs in your browser.

• 
  Whalefolio2018 · forsale.godaddy.com · ▲95

  Stop updating your portfolio each time you trade crypto

• 
  Polymarket AlertsNov 2025 · polymarket-alerts.com · ▲12

  Instant alerts for trades, price moves, and whale activity

• 
  Polymarket Live Whale Trades & SignalsFeb 2026 · 0xinsider.com · ▲3

  Scored on 6 metrics — profit, risk-adjusted returns, and consistency. Study what the top earners do differently, then use it to win more yourself.

• 
  polypokJan 2026 · polypok.com · ▲4

  Follow the traders who consistently win on polymarket.

• 
  Event Contract Arbitrage Calculator 2024 · eventarb.com · ▲10

  Find & secure risk-free profits on Kalshi, Polymarket and RH

• 
  PolygooseJun 2026 · polygoose.xyz · ▲2

  Copy whales on Polymarket, automatically, with risk filters

• 
  WallHop – 12ft.io is gone, so I built a replacement▲287

  wallhop is a free paywall bypass. Paste any article link to read it without paywall popups, ads or clutter. No signup, no extension. A simple 12ft.io alternative.

  Growth · 11d ago · wallhop.io

• 
  Prefer▲201

  The execution layer for AEO

  Growth · 23d ago · tryprefer.com

• 
  MakerMap▲197

  A living map of makers and what they’re building

  Growth · 26d ago · makermap.lol

• TL
  The load-bearing vocabulary of Claude▲710

  Life & fun · Aug 2026 · louisabraham.github.io

• 
  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

• 
  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

• 
  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

• 
  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

• 
  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com