Free Fiber Tools

Browser-based tools for the field — read a trace, fix a mislabeled file, build a color chart, or run a loss budget. Pick the one that fits the job. No signup, and your files never leave your device.

Free Tool · OTDR

Fiber Trace Analyzer

Drop a trace file and instantly see span length, total loss, reflectance, a pass/fail verdict, and a full event table identifying every splice and connector. Runs entirely in your browser — files never leave your device.

Reach for it when you need to read or verify an OTDR trace in the field.

SOR · MSOR · TRC · TRCX · JSON No signup
Open the analyzer
Free Tool · Color Code

Fiber Count Chart Builder

Pick a color standard, paste or scan cable counts from a job sheet, look up a single fiber, and download a printable PDF — any count up to 6,912 fibers.

Reach for it when you need a fiber and tube color map for the cable in front of you.

TIA-598-D · IEC 60304 · VDE 0888 Printable PDF
Open the builder
Free Tool · OTDR

Trace Identifier Editor

Fix missing or wrong Cable IDs, Site A/B, operator, and fiber IDs on OTDR traces. Bulk-edit a whole batch at once and save the corrected files — no native software, no signup.

Reach for it when traces came back mislabeled and you don't want to retest.

SOR · MSOR · TRC Bulk edit
Open the editor
Free Tool · Design

Link Loss Budget Calculator

Enter source level, distance, splices, connectors, and splitters — get the expected test-point level instantly. Industry-standard per-wavelength attenuation, for fiber and PON design.

Reach for it when you need to know what a link should measure before you test it.

1310 / 1490 / 1550 / 1625 nm Fiber & PON
Open the calculator
Reference · Print

Fiber Reference Charts

Pre-built fiber count reference charts for 144, 432, 864, 1728, 3456 and more. View them free online, or order large-format printed copies shipped to your door.

Reach for it when you want a ready-made chart to hang in the truck or splice trailer.

Free online viewing Printed copies shipped
Browse the charts

Want the walk-throughs? Every tool has a step-by-step how-to over in the Field Guides.