How to Export Any Web Table to CSV, Excel, Markdown or JSON (No Code)

tHelloWorld — Mon, 15 Jun 2026 02:13:10 +0000

You see a table on a web page. You want it in a spreadsheet. You select it, copy, paste into Excel — and the columns shatter into a single mangled cell. Numbers turn into text. Merged cells go everywhere. You end up re-typing it by hand.

I hit this often enough that I built a small tool to never do it again. Sharing it here in case it saves you the same annoyance.

The problem with copy-paste

HTML tables and spreadsheet cells are two different worlds. When you copy a rendered table, the browser hands the spreadsheet a blob of text that looks tabular but rarely maps cleanly — especially when the table uses rowspan / colspan, has nested markup inside cells, or is styled with <div>s pretending to be a grid.

The usual escape hatches all have a tax:

Write a scraper — overkill for one table, and now you're maintaining Python and a CSS selector.
Paste into a "paste special" dialog — fiddly, and still breaks on merged cells.
Use a heavyweight extension — most cap the free tier at a few hundred rows or push you to sign up.

I wanted something that's one click, free, and doesn't send my data anywhere.

Table Grab

Table Grab is a tiny Chrome extension that copies and downloads any HTML table on a page to CSV, Excel, Markdown or JSON — in one click.

No sign-up. No API key. No backend. Everything runs locally in your browser; nothing is uploaded.

How it works

Open any page that has a table.
Click the Table Grab icon. It instantly lists every table on the page — each with a smart title pulled from the surrounding content, not a useless "Table 1, Table 2, Table 3".
Hover a table in the list to preview it, and watch it get highlighted right on the page so you know exactly which one you're grabbing.
Pick a format — CSV, Excel, Markdown or JSON — and click Copy or Download.

That's the whole loop. On a heavy page with dozens of tables it still opens instantly, because it only reads each table's structure up front and extracts the full cells lazily, when you actually pick one.

Four formats, and when to reach for each

CSV — opens directly in Excel, Google Sheets or Numbers. UTF-8 with a BOM, so accented characters and CJK text don't turn into garbage.

Excel — same data, spreadsheet-ready.

Markdown — paste straight into Notion, Obsidian, GitHub issues, or your docs. This one is my favorite; turning a web table into a clean Markdown table used to be a manual chore.

JSON — structured rows for quick reuse: feed it to a script, a notebook, or an LLM without writing a parser.

The details that usually break

Merged cells (rowspan / colspan) are expanded correctly instead of collapsing into the wrong columns.
Excel-friendly CSV — no more "why is my CSV one giant column" or garbled UTF-8.
Lots of tables on one page? A search box filters them by title or content, so you find the right one fast.

Why local-only

The extension only reads the table on the page you're looking at, only when you click the icon. No login, no account, no analytics, nothing leaves the browser. The privacy practices are declared right on the Chrome Web Store listing: no data collected.

For something that touches whatever page you happen to be on, that felt like the only honest default.

Try it

It's free, with no row limit: Table Grab on the Chrome Web Store

If you try it, I'd genuinely like to hear about any table it fails to parse — drop the URL in the comments and I'll dig into it. That feedback is what shapes the next version.

Life after MythX: A Drop-in Solidity Security API

tHelloWorld — Tue, 21 Apr 2026 03:19:41 +0000

On March 31, 2026, Consensys shut down MythX — the Solidity security API that had quietly sat inside many teams' CI for 6+ years.

I was one of those devs. My side-project Hardhat repo had a yarn security script pointing at MythX. One day it 500'd, and that's how I found out.

I looked around for a replacement. The options:

Run Slither locally — powerful, but compiler pinning, Docker, and false-positive triage eat an afternoon per project.
SolidityScan — $29.99 per 1,000 LOC per month, which scales weirdly if you're scanning the same small contract often.
CertiK / OpenZeppelin Defender — enterprise audit pricing ($10k+), not built for "I just want to sanity-check my DAO's treasury contract before a weekend upgrade."

So I built SmartScan. One POST request, structured audit JSON back, Solidity 0.8.x today, more EVM languages on the roadmap.

What a scan looks like

Here's a classic reentrancy vulnerability to scan:

pragma solidity ^0.8.0;
contract VulnerableBank {
    mapping(address => uint) public balances;
    function deposit() external payable {
        balances[msg.sender] += msg.value;
    }
    function withdraw() external {
        uint amount = balances[msg.sender];
        require(amount > 0);
        (bool success,) = msg.sender.call{value: amount}("");
        require(success);
        balances[msg.sender] = 0;
    }
}

Save it as VulnerableBank.sol, then scan it:

curl -X POST "https://smart-contract-security-scan.p.rapidapi.com/api/v1/scan/sync" \
  -H "Content-Type: application/json" \
  -H "X-RapidAPI-Key: YOUR_KEY" \
  -H "X-RapidAPI-Host: smart-contract-security-scan.p.rapidapi.com" \
  -d "$(jq -n --rawfile src VulnerableBank.sol '{source_code:$src, contract_name:"VulnerableBank"}')"

Get back structured findings:

LLM-reasoned triage means you don't drown in warnings you'd have to filter by hand. A risk score 0–100 gives you a single number to gate CI on.

Pricing (no per-LOC weirdness)

Free — 1 scan / month, entry-tier model
Starter — $48.9 / 100 scans
Pro — $134.9 / 300 scans
Business — $399 / 1,000 scans

Or one-off $9.9 / scan on our API.market listing if you don't want a subscription.

Who this is for

Indie Solidity devs with 2–10 repos who can't justify $5k+ per audit
Hackathon teams needing a quick sanity check before demo day
Small DAOs doing routine upgrades

If you're an enterprise with a $100k/year security budget, this isn't for you — CertiK and Trail of Bits serve that market. SmartScan fills the MythX-shaped hole: API-first, cheap enough to not think about, accurate enough to trust.

Try it

Landing page: 👉 smartscan.dev

Or go straight to the free tier on RapidAPI (no credit card, 1 scan/month): SmartScan listing.

If you try it, DM me on Twitter @smartscan_dev — I'm collecting feedback from the first 10 real users and giving 3 months of Pro free in exchange for 3 sentences: what worked, what didn't, what you'd pay.

DEV Community: tHelloWorld

How to Export Any Web Table to CSV, Excel, Markdown or JSON (No Code)

The problem with copy-paste

Table Grab

How it works

Four formats, and when to reach for each

The details that usually break

Why local-only

Try it

Life after MythX: A Drop-in Solidity Security API

What a scan looks like

Pricing (no per-LOC weirdness)

Who this is for

Try it