Cutting perfect circles in wood can feel like a magic trick the first time you nail it. Whether you’re making tabletops, lazy Susans, clocks, or curved furniture parts, a solid circle cutting jig turns a frustrating task into a repeatable, accurate process. The good news? You don’t need to buy one. There are excellent free DIY circle cutting jig plans available, shared by generous makers who have already done the testing for you.

Below is a curated collection of 10 free plans—covering router-based jigs, table saw options, and adjustable designs—each with clear instructions and real shop-tested results.

Easy Adjustable Circle Jig for a Router (Salt City Workshop)

Overview: A straightforward, shop-friendly router circle jig that focuses on adjustability and repeatability. It’s the kind of build you can knock out with basic materials, then keep reaching for whenever round parts show up in a project.

Why it is great: It’s adjustable without feeling fussy—quick to set up and easy to trust when accuracy matters.

Link to original plans: https://www.saltcityworkshop.com/post/easy-adjustable-circle-cutting-jig

DIY Circle Cutting Router Jig (Sawdust Girl)

Overview: This scrap-built approach uses a simple “box” that captures the router base and an arm you can drill for pivot points. It’s practical, approachable, and designed for real-shop flexibility rather than perfection on paper.

Why it is great: It’s a genuinely budget-friendly jig that still delivers reliable circles once you dial in your pivot hole.

Link to original plans: https://sawdustgirl.com/homemade-circle-jig-router/

Circle Jig for Router Table (Kiwi Workshop)

Overview: A router-table-friendly circle jig that leans into controlled, stable cutting. If your workflow is “rough it out, then route it clean,” this plan fits that rhythm and keeps hands well positioned during the cut.

Why it is great: Router-table jigs can feel safer and steadier, and this one is built around that advantage.

Link to original plans: https://www.kiwiworkshop.com/blog/how-to-cut-perfect-circles-on-the-router-table-with-a-circle-jig/

Adjustable Circle-Cutting Jig (Canadian Woodworking)

Overview: A detailed, “do it right” build that covers an adjustable jig suitable for both routers and jigsaws, plus techniques for situations where you don’t want a visible pivot hole in your show surface.

Why it is great: It’s a classic deep-dive plan—great when you want options, precision, and a jig you’ll keep for years.

Link to original plans: https://canadianwoodworking.com/project/adjustable-circle-cutting-jig/

DIY Incremental Circle Jig for Band Saw & Router Table (Paoson Woodworking)

Overview: This clever build uses an incremental adjustment mechanism (think fine-tuning the radius with a threaded rod) and is designed to work in a miter slot for repeatable results on smaller circles, wheels, and discs.

Why it is great: The micro-adjustability is a game-changer when you need “sneak up on it” precision.

Link to original plans: https://www.paoson.com/blog/en/diy-incremental-circle-jig/

Router Circle Cutting Jig Plans (AllFlavor Workshop)

Overview: A clean, purpose-built jig with a clear measuring system and a layout that looks ready for real project work—especially helpful if you make circles often and want faster setup without reinventing the wheel.

Why it is great: The built-in scale and tidy layout make repeat cuts feel fast and confident.

Link to original plans: https://allflavorworkshop.com/router-circle-jig/

Bosch Router Circle Jig Template (Cutting Paths)

Overview: A $0 downloadable template set (SVG/DXF and more) intended for a Bosch plunge router, with notes about modifying the design to suit other bases. Great if you like making shop aids with CNC/laser tools or want a clean, repeatable file-based starting point.

Why it is great: It’s a true “download and go” option that still leaves room for customization.

Link to original plans: https://cuttingpaths.com/designs/bosch-router-circle-jig-template/

Laser-Cut Router Circle Jig File (Glowforge Community)

Overview: A community-shared SVG file (free download) for a router circle jig—ideal if you have access to a laser cutter and want a crisp, repeatable layout with engraved marks and clean geometry right out of the gate.

Why it is great: The downloadable SVG makes it incredibly quick to produce a polished jig without manual layout.

Link to original plans: https://community.glowforge.com/t/router-circle-cutting-jig/46675

Simple Router Circle Cutting Guide (Reddit / r/woodworking)

Overview: A refreshingly minimal “make it from scrap and get back to the project” style circle guide. The post includes a photo of the jig and practical notes in the comments about hardware sizing and how the builder prefers drilling dedicated pivot holes per project.

Why it is great: It’s proof that you can get solid results with a no-nonsense jig and a simple, repeatable process.

Link to original plans: https://www.reddit.com/r/woodworking/comments/ak6zn5/i_made_a_simple_router_circle_cutting_guide_dont/

How to Cut Circles with a Router Jig (Woodworker’s Journal)

Overview: A clear, shop-tested walkthrough on using a router circle jig like a compass—covering setup, pivoting, and the basics that keep your cut clean and controlled. It’s less about building a specific jig and more about using one well.

Why it is great: If your circles are “almost perfect,” this guidance helps you tighten up technique fast.

Link to original plans: https://www.woodworkersjournal.com/video-cut-circles-router-jig/

Wrap-Up

A good circle cutting jig is one of those shop helpers you’ll reach for again and again. Whether you prefer a quick plywood build or a finely tuned adjustable jig, these free plans cover a wide range of styles and skill levels. Pick one that matches your tools, build it once, and enjoy perfectly round results on every project that follows.

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