Round, Fillet or Chamfer SketchUp Edges in Seconds — Free, Textures Kept

Get BevelUp on Extension Warehouse (free) →

SketchUp’s 3D modeler still has no fillet, chamfer or bevel command for the edges of a solid, so rounding a corner usually means fighting with Follow Me or buying a paid extension. (SketchUp 2026 did add Fillet and Chamfer tools, but only inside LayOut, for 2D vector linework, not for 3D geometry.) BevelUp is a bevel, fillet and chamfer plugin for the 3D side: select edges, set a Radius and a number of Segments, press Round, and the selected edges come back as native rounded or chamfered faces, on a single box edge or on a corner where many edges meet. Every feature is free for 3 Rounds a day, with no license key and no trial.

The paid alternatives: Fredo6’s RoundCorner ($15 perpetual, 3 seats, 30-day trial) and FredoCorner ($30 perpetual, 3 seats, 15-day trial) are sold through Sketchucation and both need Fredo6’s free LibFredo6 library; Bevel by Mind Sight Studios is $49 with a 15-day trial (prices as of November 2026). BevelUp installs from Extension Warehouse with no license key and no companion library.

BevelUp SketchUp — Video Demo

Bevel, fillet or chamfer: what BevelUp builds

SketchUp users say “bevel” for two different results, and BevelUp makes both with the same two controls:

• Fillet (round): the sharp edge is replaced by a curved strip. Segments sets how many flat steps approximate the arc; more steps give a smoother curve.
• Chamfer (flat bevel): the sharp edge is replaced by one flat angled face. In BevelUp that is simply Segments = 1.

Segments is the setting that drives face count. Along a straight edge each extra segment adds one more strip of faces, and where several rounded edges meet at a corner the corner patch grows roughly with the square of the segment count. The dialog starts at 12 segments; for parts you will copy or array many times, a lower count keeps the model light.

How to round or chamfer edges in SketchUp with BevelUp

1. Select the edges you want to round: one edge, a closed loop around a face, or several edges at once. Triple-clicking a shape selects all of its faces and edges; BevelUp only uses the edges.
2. Open BevelUp from its toolbar button or from Extensions → BevelUp. The dialog shows how many edges are selected.
3. Set Radius (in mm or inches, picked in the dialog) and Segments (1 = chamfer, more = smoother fillet).
4. Press Round. BevelUp rebuilds the faces around those edges as native SketchUp faces, keeps their materials, and records the change as one undo step, so Ctrl+Z (Cmd+Z on a Mac) puts the sharp edges back.

The largest Radius is set by the faces, not by what you type. BevelUp measures Radius along each face beside the edge, so it cannot be wider than that face; when two selected edges run parallel on the same face (the two long edges of a narrow board top), each can take at most half the gap between them. A Radius over the limit is refused before anything is built, and the message gives the largest value that fits, in the unit you picked.

Features

• Fillet and chamfer in one tool: Segments = 1 gives a flat chamfer, 2 or more a rounded fillet. Same Radius control for both.
• Closed edge loops: the full perimeter of a face rounds uniformly in one operation.
• Open edge chains: partial selections that stop at a model boundary work just as well.
• Any edge count at a corner: 3, 4, 5 or more edges meeting at one vertex, such as box corners and pyramid or cone apexes.
• Open corners: more edges than faces, such as single sheets, boxes without a lid, chains ending at the model boundary.
• Concave corners: inside corners of L- and U-shaped solids, notches and pockets.
• Materials and texture placement kept: each rebuilt face takes the material of the face it replaces, with the texture position carried onto the new faces. No re-painting.
• Smooth shading without a Soften pass: edges between new faces that meet at less than 30° are softened and smoothed automatically.
• Re-editable output: native SketchUp edges and faces. Push/pull, paint or keep modeling after rounding.
• Settings remembered: Radius, unit and Segments are kept between sessions.

Rounds any corner: 3 to n edges, open and concave

One selection, two controls, Radius and Segments, and one Round button. Whatever the corner is, you do not switch tool or pick a mode:

• Any number of edges at a corner: 3 (a plain box corner), 4, 5 or more, such as the apex of a pyramid or a cone, or any hub where many edges meet. Every corner in the selection is rounded in the same pass.
• Corners where only some edges are rounded: a corner can mix selected and unselected edges; the unselected ones stay sharp and the corner is closed around them.
• Open corners: corners with more edges than faces, such as a single sheet, a box with its lid removed, or an edge chain that stops at the model boundary. The open side rounds like a closed one.
• Concave corners: the inside corners of L- and U-shaped extrusions, notches and pockets round as cleanly as outward ones.

All three cases, as they come out of SketchUp:

What the rounded geometry looks like

• Soft where the surface is curved, hard where it turns. After a Round, every edge between two new faces that meet at less than 30° is set soft and smooth, the same idea as SketchUp’s Soften Edges. On a right-angle edge with 4 or more segments each step is 22.5° or less, so the whole fillet, including the line where it meets the flat face, shades as one surface. With 1 to 3 segments the steps are 30° or more and stay visible, which is what you want on a chamfer.
• Flat faces stay single faces. The flat faces next to the rounded edges are rebuilt too; where they come back as several coplanar pieces, BevelUp erases the lines between them, so a box side is still one face you can push/pull.
• The curved strips are triangles. Their diagonals are softened, so they do not show in a normal view; turn on View → Hidden Geometry to see them.
• One material per face. A rebuilt face takes the front material of the face it replaces (or the back one if only the back is painted) and gets it on both sides. A texture positioned with the free-pin (distort) mode of Position Texture is carried over as an approximation.

Groups, components, units and undo

• Edit inside the group first. In SketchUp most geometry lives in a group or a component. BevelUp rounds edges in the context you are editing, so double-click into the group or component and select the edges there; with a group selected from outside, the dialog says so instead of rounding nothing.
• Components update together. Rounding edges inside a component edits its definition, so every copy of that component in the model is rounded too, which is usually what you want for repeated parts like legs or handles. Use Make Unique first to round one copy only.
• Radius has its own unit. Pick mm or inches in the dialog, whatever units the model uses. On the first run it opens at 50 mm and 12 segments; after that it opens on the values you last used.
• To change a Radius, undo and Round again. Each Round is one undo step. Undoing back to the sharp edges and rounding once with the new value gives cleaner geometry than rounding an already rounded edge.

When BevelUp can’t round: invalid selections and errors

BevelUp checks the selection before it builds anything. If a Round is refused, the message under the buttons says what is wrong, nothing in the model changes and the Round does not use up one of your daily free Rounds: only a Round that SketchUp has actually built counts.

Message in the dialog	What it means	What to do
A group is selected — double-click into it, then pick the edges to round	The selection is a group or component, not edges.	Open it and select the edges inside.
Shapes touch at a corner here	Two shapes meet at a single point, or a third face joins at that corner, so the faces around it do not form one clean fan.	Pick edges away from that corner, or separate the shapes.
3 or more faces on N edges	An edge shared by three or more faces (non-manifold), for example a wall that ends on the edge of a box.	Pick edges that belong to a single shape.
Open surface at N edges	The edge has only one face, because the surface has a hole or is the border of a loose sheet.	Close the hole, or pick edges where two faces meet.
N edges lie flat	The two faces on the edge are coplanar, so it is a line across a flat area, not a corner.	Pick edges where two faces meet at an angle.
No face on these edges	The selection holds loose edges (guide lines, curves) with no face.	Select edges that border faces.
Radius too small for SketchUp to build	The new faces would be smaller than SketchUp can create.	Use a bigger Radius.
Radius too large here — up to X fits	The Radius is wider than the faces next to the edge (for two parallel edges on one face: more than half the gap between them), so the new surface would run outside the shape. The message gives the largest Radius that fits.	Type a Radius at or below that number.
Too many edges picked / N segments is too much	The Radius is fine, but the result would be too heavy to build in one go.	Round fewer edges at a time, or lower Segments to the number the message suggests.
Used N segments: more would be too small for SketchUp	The Round was built, with fewer segments than you asked for, because more would have made faces below SketchUp’s minimum size.	Accept it, or use a bigger Radius if you need more segments.
This BevelUp version can’t round — update the plugin	The installed plugin is older than the dialog it opens.	Install the current version from Extension Warehouse.
SketchUp did not answer in time — try Round again	SketchUp was busy and did not hand over the selection.	Press Round again.
Couldn’t round this selection (ref …)	None of the cases above; the ref code identifies the cause.	Try fewer edges or a smaller Radius, and quote the ref code if you contact support.

Partly valid selection. When only some of the picked edges are a problem, BevelUp rounds the rest and shows Skipped N edges with the reason, in amber rather than red because the Round did land. The skipped edges are left selected, so you can see which they are and fix them.

Radius limit on concave faces. On a concave face (an L-shaped face, for example) the Radius check only catches the obvious cases, so if a rounded edge still looks wrong, undo and try a smaller Radius.

BevelUp vs. other round corner options

	BevelUp	RoundCorner (Fredo6)	FredoCorner (Fredo6)	Bevel (Mind Sight)	Follow Me (native)
Price (Nov 2026)	Free, 3 Rounds a day	$15, 30-day trial	$30, 15-day trial ($8 for 21 days)	$49, 15-day trial	Built in
Seats	Per 3dshouse account, any computer you sign in on	3	3	Not stated	—
Also needs	Nothing (free account)	LibFredo6	LibFredo6 + Sketchucation ExtensionStore	Nothing stated	—
Shapes	Fillet, chamfer (Segments = 1)	Round, Bevel, Sharp	Round, asymmetric offsets	Fillet, chamfer	Any profile you draw
Concave corners	Rounded or chamfered like convex ones	Always rendered as Round, even in Bevel mode	Not stated	Not stated	Manual
Groups and components	Open the group, select edges	Top-level geometry only: open the group first	Works across group and component boundaries	Applied to a whole group or component	Open the group first
Edit the shape after rounding	Undo, edit, Round again	Undo, edit, round again	Undo, edit, round again	Live Bevel updates by itself	Redraw
Textures	Kept, texture position carried over	Fredo6: texture continuity is not an objective; apply textures after	Same statement as RoundCorner	Not documented	Paint after
SketchUp versions	2022–2026	2017 and above	2017 and above	2017 or newer	All

Prices, trials and requirements from the vendors’ own pages and announcement threads, checked November 2026; check them again before you buy. Which one fits: Bevel’s Live Bevel is the only option here that re-rounds by itself when you keep editing the shape, which matters for models that go through many revisions. FredoCorner is the Fredo6 tool that works across group boundaries. BevelUp is the free option for the common job: a selection of edges rounded or chamfered once, with textures kept.

Prefer the native route for a single sweep? See our Follow Me guide, the RoundCorner and FredoCorner guide and the three-plugin comparison.

Install

⬇ Get it on Extension Warehouse

1. Open the link above, sign in with your Trimble ID and click Install.
2. Or install without leaving SketchUp: Extensions → Extension Warehouse, search BevelUp, click Install.
3. BevelUp appears under Extensions → BevelUp, with a one-button toolbar. If the toolbar is not shown, turn it on in View → Toolbars → BevelUp.
4. When a newer version is published, the dialog shows an update button.

Requirements

• SketchUp 2022, 2023, 2024, 2025 or 2026.
• Windows or macOS.
• An internet connection: the dialog loads online.
• A free 3dshouse account. The dialog opens without one; it asks you to sign in at your first Round, in your browser, and then runs that Round. Every feature is free for 3 Rounds a day.

FAQ

Is BevelUp a free alternative to RoundCorner / FredoCorner for rounding edges in SketchUp?
Yes, within a daily limit. RoundCorner ($15) and FredoCorner ($30) are paid perpetual licenses for 3 seats each, after a 30-day and a 15-day trial (prices as of November 2026). BevelUp gives you fillet and chamfer with materials kept, free for 3 Rounds a day, with no license key and no trial to run out.

What is the difference between a fillet and a chamfer?
A fillet is a curved (rounded) edge; a chamfer is a flat angled cut. BevelUp does both: set Segments to 1 for a chamfer, or higher for a smooth fillet.

Can I round several edges or a whole face at once?
Yes. BevelUp handles single edges, closed loops around a face, open edge chains, and corners where 4 or more edges meet, all in one operation.

Can BevelUp round corners with more than three edges, open corners and concave corners?
Yes. A corner can have 3, 4, 5 or more edges, can be open (more edges than faces, like a single sheet or a box without a lid) and can be concave (the inside corner of an L- or U-shaped extrusion). Select the edges, set Radius and Segments, press Round: there is no separate mode for each case.

Does it keep my textures and materials?
Yes. Each rebuilt face takes the material of the face it replaces, and the texture position is carried onto the new faces, so there is no re-painting.

Does BevelUp work on groups and components?
Yes, from the inside: double-click into the group or component and select its edges. Rounding inside a component changes every copy of it; use Make Unique first to round one copy only.

Which unit is the Radius in?
Millimeters or inches, chosen in the dialog, independent of the model’s units.

Does a refused Round use up a free Round?
No. Only a Round that SketchUp has built counts toward the 3 a day.

Doesn’t SketchUp 2026 already have Fillet and Chamfer tools?
Those 2026 tools live in LayOut and only work on 2D vector linework for documentation. They do not round the edges of 3D geometry, which is what BevelUp does in the SketchUp modeler.

How is this different from Follow Me?
Follow Me requires drawing a profile, positioning it and tracing a path, edge by edge, and corners where swept edges meet need manual cleanup. BevelUp rounds a whole selection of edges in one operation, closes the corners, and keeps materials. Follow Me remains the tool for custom profiles such as an ogee or a cove.

Does it work on imported or CAD geometry?
BevelUp works on SketchUp edges and faces, so an import works once it is clean: faces closed, each edge shared by two faces. Need to lighten a heavy import first? Try Decimify.

Can I use the output for 3D printing?
BevelUp builds ordinary SketchUp faces, so every exporter SketchUp has takes them. Before printing, check that Entity Info still reports a solid group or component after rounding.

Which SketchUp versions are supported?
SketchUp 2022 through 2026, on Windows and macOS.