VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Sunday, October 5, 2025
Best Free 13D/13G Tools for Investors
Every product on this page includes a genuinely free tier, so you can plug trusted 13d/13g software into your workflow without swiping a card.
We filtered our full directory to focus on the 5 free 13d/13g platforms investors lean on today. Community voting keeps the rankings honest, while editorial picks highlight standout experiences for research, screening, and execution. Use this shortlist to compare pricing limits, supported platforms, and capabilities before graduating to paid upgrades.
More ways to explore
Want the full picture? The main category page covers 7 total 13d/13g tools, and the broader Find My Moat directory spans more than 205 investing platforms.
Top 5 picks
5 picks- 1
A free research platform for US markets that combines filings, transcripts, ownership dashboards, IPO tracking, and ETF exposure tools. Users can set up near real-time filing alerts, search with advanced operators, and export results to CSV/Excel. CapEdge also connects to Deal Roadshow for access to IPO roadshows. There’s no public API; all functionality is delivered through the web app.
Category votes onlyPricing: FreePlatforms: Web - 2
A commercial API suite for SEC/EDGAR data, designed for developers, quants, and compliance teams. The free tier includes 100 calls per month. Paid tiers unlock higher rate limits, more data (5 GB vs 15 GB monthly, with $0.30/GB overage), and features such as multiple API keys or redistribution rights for enterprise users. The platform emphasizes speed, with new filings typically available in under 300 ms.
Category votes onlyPricing: Free, SubscriptionPlatforms: Web, API - 3
The official source of U.S. regulatory filings. EDGAR provides free public access through its web portal, JSON data APIs, and structured RSS feeds (updated every 10 minutes). Developers can use the APIs on data.sec.gov for submissions and XBRL datasets, while filers use separate EDGAR Next APIs that require tokens. No email alerting is provided—RSS is the only push channel. Automated access must respect fair-use guidelines, including a descriptive User-Agent.
Category votes onlyPricing: FreePlatforms: Web, API - 4
Platform for ownership, filings, short interest, and options sentiment with broad global coverage. Plans range from Free through Bronze, Silver, and Gold, with premium features like the Workbench, Portfolio Builder, and custom quant models reserved for higher tiers. Real-time options flow, unusual options activity, and Excel export are available on paid plans. Broker account linking is supported via Plaid (U.S. only).
Category votes onlyPricing: Free, SubscriptionPlatforms: Web, API - 5
Primary U.S. source for public company, fund, and insider filings. The Full‑Text Search covers filings since 2001 (including exhibits), while the ‘Latest Filings’ view shows near‑real‑time submissions as they are processed. Search tools include Company search, Mutual Fund & Variable Insurance product search, CIK lookup, and RSS subscriptions. Developers can consume JSON via data.sec.gov (Submissions, XBRL Company Facts/Concepts/Frames). Programmatic access must include a descriptive User‑Agent and respect the SEC fair‑access limit (currently 10 requests/sec).
Category votes onlyPricing: FreePlatforms: Web, API
Ready for the full lineup? Compare all 7 13d/13g tools, including premium upgrades and advanced tiers.
View full 13D/13G listingsInformation
About Me
Hey! Thanks for stopping by. I'm an independent investor with a soft spot for coding and the stock market - especially value investing (as you can probably tell from the tools I've collected here, haha). Hopefully you'll find something useful or interesting along the way.
Find me here:
- Twitter / X: @Jera_Value
- Substack: Jera Value
Got questions or suggestions? I'm all ears!
Missing a Tool?
Discovered a gem I don't have here yet? Drop the link below and I'll check it out ASAP. Tagging me on X works too! Can't wait to see what you've found!
Starred Tools
These are my top picks. Tools I've tested thoroughly and found to be excellent. They do their job really well, and I use them a lot. If you're not already familiar with them, I highly recommend checking them out.
Tested Tools
These are tools I've tried and found to be solid, but not standout. Think of them as passing an initial quality screen: worth exploring, though not all will be exceptional.
Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.