How to use

1. Drop in your raw TGA Excel file exactly as exported from the instrument — no pre-processing, no trimming, no manual normalization needed. Column A should be temperature (°C) and Column B the mass signal. Add several files at once to overlay samples.
2. Adjust anything you like in the side panel: sample names, colors, grid lines, X-axis range, line width, or the normalization settings.
3. Export: 300 DPI PNG for manuscripts, a standard PNG for slides and quick sharing, or the fully processed data back as an Excel file (with a summary table of Td5% / Td10% / residue per sample).

Raw data in, clean plot out — the messy start is handled for you

Real TGA runs rarely start clean: there is usually an initial moisture-drying / equilibration segment where the mass drifts below 100% before the actual heating ramp begins. You do not need to trim or correct any of this — the tool does it automatically:

• Detects where the true heating ramp starts and discards the unstable drying/equilibration segment before it.
• Re-normalizes the weight to 100% at a stabilized reference point (default 50°C = 30°C ramp start + 20°C offset; both adjustable in Settings), so early moisture loss doesn’t distort your curve.
• Holds the curve flat at 100% before the reference point, so residual drift never shows up as a false early weight loss.
• Finds Td5% and Td10% by interpolation and reads the residue at the final temperature — values are shown on the plot and listed in the side panel.
• Places every label automatically so they never overlap each other, the curves, or the legend.

Everything it can do