Stale

Slides age.
Knowledge shouldn't!

Upload your slides and Stale will catch the parts that have aged out: old frameworks, broken examples, advice that's no longer true. Then it tells you what to learn in their place.

Try Stale
How It Works
Three steps to learning what's current.

No manual searching. No guesswork. Just upload and let the engine do the work.

01

Upload Slides

Upload your slides and Stale reads through them to understand what's being covered.

02

Spot what's aged out

Stale checks each slide against what's current online. Anything that's been replaced, deprecated, or no longer works gets flagged, but only if a real source proves it.

03

Get Replacements

Get a clear report showing what's out of date, why it matters, and what to learn instead.

Inside Stale
Every finding has the receipts.

Stale doesn't guess. It reads the slides you uploaded, looks up each questionable claim, and only flags something when the source it points to actually backs it up.

Catch

Two passes, not one

The first pass casts a wide net. Anything that looks wrong gets pulled aside. The second pass only keeps the items where a current source actually proves the slide is out of date.

Proof

Sources you can click

Before any issue makes it into your report, Stale opens the source page itself and confirms the quoted text really lives there. If it doesn't, the issue is dropped.

Accuracy

Pinned to the right page

Every issue is tagged with the exact lecture and page it came from. If the wrong page gets cited, Stale searches the slides for the matching text and corrects it.

Job fit

What jobs actually want

Tell Stale the role you're aiming for, and it compares what your course covers against what real job postings ask for, without ever pushing you toward something it just flagged.

See it in action.

A real finding from one of Stale's audits.

Lecture 6 · Database & Content Providers · pages 9, 22
What the slide says
db.execSQL("INSERT INTO student VALUES('"   + editRollno.getText() + "','"   + editName.getText() + "','"   + editMarks.getText() + "');");
Cursor c = db.rawQuery(   "SELECT * FROM student WHERE rollno='"   + editRollno.getText() + "'", null);
Issue: User input is dropped straight into the SQL string. That's a textbook SQL injection.
What to learn instead
// Parameterized queries, safe from injection db.execSQL("INSERT INTO student VALUES(?, ?, ?)",   new Object[]{rollno, name, marks});
Cursor c = db.rawQuery(   "SELECT * FROM student WHERE rollno = ?",   new String[]{rollno});
✓ Source checked owasp.org / SQL_Injection
Get Started
What you're learning
deserves a second look.
Get Stale Try Stale