Video Speed Controller - Online Slow Motion & Timelapse
Play any video at 0.25x to 4x speed. Save the modified speed as a new file. Perfect for analysis or fun.
UD5 Toolkit
Play any video at 0.25x to 4x speed. Save the modified speed as a new file. Perfect for analysis or fun.
Play any video at a custom rate (0.25x to 4x) without audio pitch change. Save the playback speed as a link. Local.
Paste a Kanji and watch it drawn stroke by stroke with numbered sequence. Excellent for learners. Static data set.
Click a letter and watch an animated stroke order for print or cursive. Good for kids learning to write.
Load a GIF and adjust playback speed. Save modified GIF. Pure client-side processing.
Manually manage flashcards with 5 virtual Leitner boxes. See when to review each box next. All data local storage.
Deep-dive into text with detailed character and letter frequency analysis. Supports multiple languages and includes whitespace control. Fast and private.
Load an animated GIF and adjust its frame delay to make it slower or faster. Download the modified GIF. All local.
Count words, characters, sentences, and paragraphs instantly. Analyze text density and reading time. Secure client-side processing for your content privacy.
Create a simple grid or carousel album with local images and captions. Export as printable PDF. Private.
Create or solve logic grid puzzles (like Einstein's riddle). Enter clues and mark the grid. Practice logical deduction. Local only.
Step‑by‑step animated guide for abdominal thrusts on adults, children, and self. Essential emergency knowledge.
Type a simple sentence and see a rudimentary Reed‑Kellogg diagram. Educational.
Play Rock Paper Scissors against a smart random CPU with win/loss/draw tracking. Smooth CSS animations. No ads, pure fun.
Load an SRT file and shift all timestamps forward or backward by milliseconds or seconds. Fix out-of-sync subtitles instantly. Download corrected file.
Randomly displays a constellation with its art and the associated myth from Greek or other cultures.
Create cards and review using a spaced repetition algorithm (Leitner box simulation). Cards stored locally. Improve exam prep.
Assign a color and number to each room and generate a printable inventory sheet. Check off box contents as you pack. Stay organized.
Enter a list of buzzwords or concepts and shuffle them into random pairs. Stimulate creative thinking. All local.
Create a weighed pros and cons list with a score. Help make tough decisions. Data saved locally.
Enter a regular expression and see a visual railroad diagram explaining the pattern. Learn and debug regex.
Paste word pairs (or load pre-made sets) and practice with randomized flashcards. Flip to reveal translation, mark as known/unknown. Local data, no login.
Cute vegetable-themed memory matching game for preschoolers. No ads, simple interface.
Type a child's name and create a printable dotted trace sheet. Practice fine motor skills. Local only.
Create a creepy name for a haunted mansion or ghost story setting. Perfect for Halloween. Local.
Paste words with translations, shuffle, test yourself. Simple local spaced recognition.
Craft a 30‑second elevator pitch by filling in problem, solution, and ask. Copy the final professional text.
Track personal expenses and categorize spending. Interactive charts show where your money goes. All financial data remains in your browser only.
Check English spelling and get suggestions using the browser's built-in dictionary. Highlight errors instantly. No data leaves your machine.
Compare time across multiple time zones and find a suitable meeting time. Convert a specific time to various cities. Browser-based and always accurate.