Harold

What it does

Most tools stop at extraction they pull data off an invoice and hand it to you, mistakes and all. Harold goes further: recalculates totals, matches your price list, codes each line, flags anything off, and holds bad data back instead of pushing it downstream. Clean, validated data fires into Sheets, Xero or your ERP via Zapier. No consultant, no contract, set up in minutes. It's the validation step your parser doesn't give you.

Clean, validated, import-ready supplier invoice data for any ERP — new or legacy (Sage, WinMan, Pegasus, Syspro). Train once per supplier. Connect via Zapier or a ready-to-import file.

Harold extracts, checks, and fixes your documents before they hit your systems. Pick where your data needs to end up. We'll set you up for exactly that. Half-extracted documents quietly break the workflows that depend on them. Wrong VAT, wrong subtotal, wrong supplier — and your accounts go with it. Your team spends hours every week re-reading documents the AI already saw. AI pulls data from any document — invoices, receipts, purchase orders, statements. Rules catch mistakes the moment they appear. Wrong totals, missing fields, bad supplier IDs. Send clean, validated data straight to your ERP, accounting tool or Zapier flow. Drop documents in, or send them to your unique Harold inbox.…from useharold.com

• 
  Nolain OCRFeb 2026 · nolainocr.com · ▲85

  Turn hundreds of documents into one clean spreadsheet

• 
  I got fired so I built a bank statement converterNov 2025 · aussiebankstatements.com · ▲16

  I recently got fired and decided to channel my energy into something productive. Over two weeks, I spent 16-hour days building a tool that converts Australian bank PDFs into clean, reliable CSVs, tailored specifically for Aussie banks. Most Aussie banks only provide statements as a PDF, and generic converters often fail: columns drift, multi-line descriptions break parsing, headers shift. Existing tools don’t handle it well and I wanted a tool that just works. To get started, I used my own bank statements to build the initial parsers. There was a "duh" moment when I realised how hard it is…

• 
  ClearLedgerJul 2026 · clearledger.co.in · ▲2

  Clean messy financial data in seconds

• 
  CleanMyDataFeb 2026 · cleanmydata.io · ▲2

  Smart CSV & Excel Cleaner — Clean & Validate in Seconds

• 
  CleanMyCSVJun 2026 · cleanmycsv.org · ▲2

  For finance teams: clean CSVs without uploading your data

• 
  Validata2025 · ▲8

  Clean your messy data in minutes!

• 
  /dev/null▲486

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Fundraisly▲1,537

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

• 
  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

• 
  Performative-UI – A react component library of design tropes▲1,181

  Hi HN! I was super frustrated at apps like tiktok and wechat preventing me from saving or downloading the animated gifs, so I made a little tool to turn a screen recording into a slack-sized emoji. Hope you get some value from this!

  Life & fun · Jun 2026 · vorpus.github.io

• 
  Upstream▲976

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

• 
  Goldfish▲958

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

• 
  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Search 18 years of Hacker News and chart how any topic, tool, or person trended. Overlay terms to compare their rise and fall across 45M posts and comments.

  Life & fun · Jun 2026 · hackernewstrends.com