Freezer box map maker
Pick a box size, fill it by typing or pasting sample IDs, and print a clean one-page map or a blank template to write on. Save your boxes to a small file, or download a CSV.
Runs in this page. Nothing you type is uploaded, and there is no account.
Box details
Size and labels
Fill the box
Filled and blocked positions are skipped, so nothing already in the box is overwritten. IDs that do not fit stay in the list.
Print and share
Boxes and files
Save file keeps every box in one small file. Clear empties this box. Remove deletes it from the file.
Box details, fill and print options ↓
Filled 0 Free 81 Blocked 0 81 positions
Keyboard: arrow keys move around the box. Start typing, or press Enter, to type a sample ID. Enter saves it and moves on. Delete clears the position. Escape cancels.
How to use it
- Choose the box format and how positions are named (A1 to I9 is the usual freezer box layout).
- Type the freezer, rack and box name, so the printed map and the CSV say where the box lives.
- Click a position and type a sample ID, or paste a list and choose Fill the box.
- Block any positions that cannot be used, for example a damaged corner.
- Print the map to tape to the box or the freezer, or print a blank template to fill in by hand.
- Save the file to keep your boxes. If you close the page without saving, they are gone.
Questions
Does anything I type get uploaded?
No. This page does all of its work in your browser. It has no account, no upload and no server for your data. It sets no cookies and stores nothing in your browser. Your boxes are not kept anywhere, so save a file to keep them.
How do I keep my work?
Use Save file to download a small file with all your boxes in it, and Open file to load it again later. You can also download a CSV. If you close the page without saving, the boxes are gone.
Which box formats can I make?
9 x 9, 10 x 10, 8 x 12, 8 x 8, 7 x 7 and 5 x 5, or a custom grid of up to 26 rows and 30 columns. Positions can be named A1 to I9, or numbered along the rows or down the columns.
How do I move these samples into LimsRat?
Download the CSV and use Import CSV in LimsRat. The columns are id, status, location, position and notes, and LimsRat matches them by name. LimsRat keeps storage locations as one flat list, so each box becomes one location named like Freezer 2 · Rack 3 · Box 7, and the position goes in its own column.
Can I look at a box that is already in LimsRat?
Yes. Export CSV from LimsRat, choose Open a LimsRat CSV on this page, and pick a location. It works best when locations are named in the form Freezer 2 · Rack 3 · Box 7.
Does it work without a connection?
Once the page has loaded it does its work in your browser, so it keeps working if your connection drops. Reloading the page needs a connection.
Is a printed map an official record?
No. It is a labelling and planning aid. Follow your own lab's and institution's rules for records.
Keep these samples in LimsRat
LimsRat is a sample tracker for small labs that keeps your data on your own device, with no account. Download this box as a CSV and use Import CSV in LimsRat: id, location and position match automatically.
LimsRat keeps storage locations as one flat list, so each box becomes one location named like Freezer 2 · Rack 3 · Box 7. The position (A1, B3 ...) goes in its own column.