These free tools read food labels the way the NoJunk app does, just in your browser. Paste an ingredient list to flag additives or seed oils, look up any E-number, or check a product for hidden gluten. Each tool links to sourced explainers, and the app reads entire labels with your camera.
Ingredient Checker
Paste a full ingredient list and see every additive that has a flagged concern level, with a link to the detail.
Open the checker →Additive & E-Number Lookup
Search any additive by name or E-number, like E129 or titanium dioxide, and see what it is and what regulators say.
Look one up →Seed Oil Checker
Paste a label or an oil name to flag seed oils like canola and soybean, with simpler fats to look for instead.
Check for seed oils →Gluten-Free Checker
See how NoJunk reads the full label for wheat, barley, rye, and hidden gluten sources the allergen box misses.
Check for gluten →Which tool should I use?
If you have a whole label in front of you, start with the ingredient checker. If you are trying to understand one specific additive or E-number, use the additive lookup. For the seed oil question specifically, the seed oil checker is purpose-built, and the gluten-free checker covers wheat, barley, and rye.
| Tool | Best for |
|---|---|
| Ingredient Checker | Reading a whole ingredient list at once |
| Additive Lookup | Understanding one additive or E-number |
| Seed Oil Checker | Spotting seed oils and simpler swaps |
| Gluten-Free Checker | Finding wheat, barley, rye, and hidden gluten |
The NoJunk app reads the entire ingredient list with your camera, flagging more than 300 ingredients to watch in seconds.
Frequently asked questions
Common questions about these free tools.
Are these tools really free?
Yes. Every tool here is free, needs no account, and runs in your browser. Nothing you paste is uploaded or stored.
Do they replace the app?
No. The web tools cover the additives and oils we have written up. The NoJunk app reads the entire ingredient list with your camera and flags more than 300 ingredients to watch.
Where does the information come from?
Every flag links to a sourced explainer on this site that cites the FDA, EFSA, and Health Canada positions. The tools do not invent claims; they point you to the underlying detail.