Works in any browser · No install · Import from Bluebeam

Takeoff, markup,
and the red pen.

Measure construction PDFs and watch costs roll up by room and category. Mark up drawings with the full annotation toolset. Share a live link so everyone sees the plan change as you work.

Start 7-day free trial See how takeoff works

Costs by room, category, or projectBluebeam markups import editableQR-linked printed plans

11tools

for takeoff — rect, polygon, plane, wall, count, perimeter, more.

1outline

prices a whole room: flooring, drywall, paint, counts at once.

∞viewers

Share a live link. Outside parties watch markups land.

1scan

QR tags on printed plans open the linked RFI, photo, or doc.

Takeoff

Measure the plan. Price the job.

Identify areas of the plan as rooms, and every measurement or count inside is grouped by room. Categories carry costs, so the takeoff reads as money — hardwood, carpet, roofing, drywall — by category, by room, or in total. Multiple estimators can work the same drawing at once.

Draw rooms once.

Use the area tool to identify the kitchen, the primary bath, the garage. Everything measured inside is grouped under that room automatically.

Measure into priced categories.

Each takeoff category carries a unit cost. Draw the measurement and the dollars post — no export to a spreadsheet to find out what the plan costs.

One outline, whole scope.

Complex categories take off multiple scopes from a single drawing. Outline the bedroom once:

Hardwood flooring · SFDrywall · SFPaint · SFMillwork · LFRecessed lighting · EAOutlets & fixtures · EA

Redliner cost rollup: stucco, roofing, panel, window, and can light quantities with rates and totals, grand total $124,538

The takeoff toolset

RectanglePolygonPlane (roofs)CircleLinearWallWall polyCountPerimeterArea / roomTag

Accurate by default

AI scale detection, or calibrate it yourself.

AI reads the scale off the sheet, or draw a known dimension to set a custom scale. Deskew and perspective correction clean up scanned or photographed plans before you measure.

Export & share

A PDF for the file, a live link for everyone else.

Export the takeoff to PDF, or share a link to the live document — outside parties watch markups and measurements update as work continues.

Organized

Layers keep the sheet readable.

Annotations and takeoffs live on layers you toggle on and off. Split multi-page PDFs into individual sheets when the set arrives as one file.

Markup

A full redline kit, in the browser.

Every annotation tool the red pen ever did, plus a few it couldn't. Organize markups on layers, toggle them on and off, and work the same drawing with your whole team at once.

Annotation tools

Everyone on the same sheet.

Redline a detail while a teammate marks up the next room on the same drawing. Clouds, callouts, highlights, free draw — and a snip tool that lets you cut a section, paste it where you need it, and rescale it.

Layers keep annotations and takeoffs organized — toggle each on and off.
Multiple users markup and measure the same drawing, live.
Rotate pages; deskew and perspective-correct scanned or photographed plans.

LineSquareCirclePolygonFree drawCloudTextCalloutHighlightTagInsert imageSnip & paste

Version compare

AI reads the new rev so you don't miss the change.

Upload a new version and compare it against the last one. AI calls out what changed between revisions, so the moved wall gets caught before it gets framed.

Robust version management — old sets stay available, the current set stays obvious.
AI comparison calls out changes between any two versions.
Drag the handle and see the diff for yourself.

Rev B

Rev C

AI link detection

Section markers become links.

AI finds section and detail markers on the sheet and links them to the drawing they reference — sections, details, elevations. Tap the marker, land on the drawing, get back with one click.

One pass links markers across the whole set.
Elevations link back to their plan locations.
Works on the sets you already have — no re-drawing, no setup.

Detect links · 27 found

Sections · details · elevations● Linked automatically

Switching from Bluebeam?

Import your marked-up PDFs and the annotations arrive editable — not flattened. Years of markups keep working.

Bring a marked-up PDF

Tags & printed plans

The printed set stays connected.

Drop a tag anywhere on the drawing and link it to anything in the project. When you export for print, tags become QR codes — the crew scans a spot on the paper plan and the linked RFI, photo, or spec opens on their phone. No app install.

A tag can link to

TaskPunch list itemDocumentPhotoRFIWeb linkAnother sheet location

Exports are yours to compose: measurements, markups, rooms, tags, and labels each toggle on or off. Ship a clean owner set and a fully-loaded field set from the same drawing.

The whole project

Drawings in the middle. Everything else attached.

One dashboard shows every project you're on. Inside each: drawings, documents, photos, tasks, RFIs, and punch list — all linkable from a tag on the plan, all reachable from a QR poster on the jobsite wall.

Photos

Every photo, findable.

AI scans each photo on upload and identifies what's in it — so 'light fixtures, May 10–20' is a search, not an hour of scrolling.

Redliner tasks module: a kanban board with pending, in progress, and complete columns

Tasks & punch list

Kanban for the job.

Tasks move across the board; punch list items get their own module. Both can hang off a tag pinned to the exact spot on the plan.

Documents

Specs where the crew is.

Upload and organize project documents. Link any file to a drawing location — the flag on the doc shows where it lives on the plan.

Project poster

One QR on the jobsite wall.

Print the project poster and anyone on site scans into the shared documents, plans, and photos — no app install, no account setup.

Redliner Intelligence

Ask the project a question.

From the poster, chat or talk with the AI voice assistant about the project — where's the current set, what's open on the punch list.

RFIs

From markup to RFI.

Raise an RFI from the drawing with sheet reference and context attached. Track it through response without leaving the plan.

For your role

One product. The people who live in drawings.

Drawings are the shared language on every job. The hook changes by what you do for a living.

Estimators

Takeoff that prices itself.

Measure into cost-loaded categories and see the number move as you draw. One room outline takes off flooring, drywall, paint, and counts at once.

Priced categories · By room · Export PDF

GCs & PMs

The job, attached to the plan.

Tasks, RFIs, punch list, photos, and documents all hang off the drawing. Share a live link and the owner watches progress without asking.

Live links · Tags · RFIs & punch

Trades & Subs

Scan the plan, get the answer.

QR tags on the printed set open the linked detail, photo, or RFI on a phone. The project poster gets the whole crew in — no app install.

QR tags · Poster · No install

Architects & Engineers

The redline, evolved.

Full annotation toolset in the browser. AI compares revisions and calls out changes; section markers link to their details automatically.

Markup · Compare · Link detection

Integrations

Your drawings where they already live.

Connect Redliner to the file storage your team already uses. Keep the drawing set in place; mark up, measure, and review without copying files into another silo.

WebDAV

Dropbox

OneDrive

Google Drive

Also: the Claude Connector (MCP) and the embed SDK roadmap →

Pricing

Two tiers. Viewers included.

Start with a 7-day free trial, then pay for people who mark up, take off, or admin. Shared view-only access is included for the people who need the current plan context.

Straight answers for AI search and humans.

What is Redliner?

Redliner is browser-first construction PDF software built around two core tools: takeoff (measure drawings into cost-loaded categories, grouped by room) and markup (a full annotation toolset with layers and multi-user collaboration). Around the drawing sit project modules: documents, AI-searchable photos, kanban tasks, RFIs, punch list, and a QR project poster for jobsite access.

Is Redliner a full project management system?

No. Redliner is intentionally drawings-first. Use it for sheet sets, markups, measurements, revision review, and drawing context. Use BuildTools, Procore, or another system of record for full project operations if needed.

What file types does Redliner support?

Redliner is built around construction PDFs and large drawing sheet sets. The viewer is tuned for high zoom, page references, annotations, and exportable markup workflows.

Can Redliner handle drawing revisions?

Yes. Upload a new version and compare it against any earlier one — AI calls out what changed between revisions. Old sets stay available while the current set stays obvious, so nobody marks up a superseded sheet.

What markup tools are available?

Line, square, circle, polygon, free draw, cloud, text, callout, highlight, tag, insert image, and snip (cut a section of the drawing, paste it, rescale it). Annotations live on layers you can toggle on and off, and multiple users can mark up the same drawing at once.

Can I import markups from Bluebeam?

Yes — and this is a big one: annotations from Bluebeam and other platforms import as editable markups, not a flattened image. Your existing marked-up sets keep working in Redliner.