Ganttry GANTTRY

See it work.

Learn seven common scheduling tasks, then try Steps 1–6 in the demo below. It uses the Ganttry app. No signup or install needed. Master plan and Draft/Publish (Step 7) come with a Ganttry account.

STEP 1 · EDITING

Edit like a spreadsheet

Click a cell and type. Enter commits and moves down, Tab moves right, and a block pasted from Excel lands cell by cell. Drag the fill handle and “Area 01” continues as Area 02, Area 03. Ctrl+Z undoes up to 100 steps.

Try it in the sandbox ↓

STEP 2 · DEPENDENCIES

Link the logic

Predecessors read the way you learned them: 12, 12SS, 12FF, 12FS+3d. The Successors column mirrors every link. Insert or delete rows and each reference renumbers itself, because links live on stable task identities underneath.

Try it in the sandbox ↓

+3d lag — Backfill now starts three working days after Waterproofing & drainage finishes.

STEP 3 · CPM

Constraints, float & the critical path

A full forward and backward pass gives Late Start, Late Finish, Total and Free Float. Negative float shows red in the grid, the Gantt and every export. A deadline draws a diamond that turns red when the finish lands late.

  • SNETstart no earlier than: never sooner
  • MSOmust start on: pins the start
  • FNLTfinish no later than: red float when late
  • MFOmust finish on: warns when off the date
Try it in the sandbox ↓

-3d float — Waterproofing & drainage grew from 6d to 9d, so the chain runs late and Slab on grade misses its deadline.

STEP 4 · BASELINES

Baselines & variance

Snapshot the plan at award and keep up to five named baselines, drawn as gray bars under the live schedule. Start Var and Finish Var follow MS Project’s signs: positive slipped red, negative ahead green. Slipped rows get a red row number.

Try it in the sandbox ↓

Save a baseline; gray bars (here the Award baseline) and two variance columns show every slip.

STEP 5 · UPDATES

Status the month

One dialog sets the data date and records actuals for each task, with “Use scheduled start” shortcuts for the easy ones. Completed work keeps its actual dates, unfinished work resumes from the data date, and one Ctrl+Z undoes the round.

Try it in the sandbox ↓

Set a data date; remaining work reschedules from it, and actuals stay put.

STEP 6 · SUBMITTALS

Prove it to the owner

A one-click schedule quality audit adapted from the DCMA assessment: missing logic, leads, lags, hard constraints, float, baselines and more. Thresholds are editable per project; select a failed check to find its tasks, then export a letterhead PDF report.

Try it in the sandbox ↓

16 checks, 13 of them adapted from the DCMA 14-point assessment. Fix what fails before you submit; the report explains each one.

Across projects and crews

STEP 7 · MASTER PLAN

Plan your projects on one axis — then publish.

Selected projects share one date axis, and anyone booked on two jobs the same day is flagged beside it. Crews see the plan you last published until you press Publish.

Master plan and Draft/Publish come with a Ganttry account — the sandbox below has no company.

Publish to crews: “Publishing replaces the plan crews are seeing with the plan you have now.”

Try it right here.

This is the real Ganttry build, running privately in your browser — nothing you do here is uploaded, and a refresh resets the sandbox. There is no company account in the sandbox, so every new project starts blank; project templates, calendar standards, company columns, Home, the Roster & equipment and Company pages, Draft and Publish, the master plan, the day plan, and crew and itinerary links with their printed sheets come with a Ganttry account. You can see how shared coverage changes the numbers in the sample, but not pick new people or machines — the roster and fleet come with the account.

The real app — same build, same CPM engine Import your own XER / MS Project XML / CSV / Excel (first 60 tasks) Edits live only in this browser — refresh to reset Exports & saving unlock with the free trial
Sample — Office Building Demo
Task NameDur
▾ Preconstruction20d
◆ Notice to Proceed0
Permits & approvals15d
▾ Sitework25d
Clear & grub5d
Mass excavation10d
▾ Foundations34d
Footing excavation8d
ScheduleProjectsWorkCalendar

On a phone the demo opens in Ganttry's mobile view — the same live sandbox, sized for the field. The editing tour above shines on a laptop; the mobile side is all yours to try:

Open the live demo →
~3 MB first load · nothing to install · a refresh resets the sandbox
Like the look of it? The real thing is fully live — plus calendars, statusing, costs, health checks, imports and your whole team. Start your 14-day trial Read the cheat sheet →