tags, and placeholder images at any size (PNG / JPG / WebP), presets and a size set - [Random Color Generator](https://qrdyframes.qrdyai.com/tools/random-color-generator): free tool: random color and palette generator with locks, styles and harmony rules, a color palette from any image (never uploaded), HEX / RGB / HSL copy, contrast check, saved palettes and a color of the day - [2027 Calendar](https://qrdyframes.qrdyai.com/tools/2027-calendar): free tool: printable 2027 calendar with US holidays, year on one page or month per page, Letter / A4, portrait / landscape, Sunday or Monday start, week numbers, your own events with countdowns, saved in the browser - [Seating Chart Maker](https://qrdyframes.qrdyai.com/tools/seating-chart-maker): free tool: classroom and wedding seating chart maker, rows / pairs / groups / U-shape or round and long tables, random shuffle with keep-apart and keep-together rules, drag or tap to swap, saved classes with a weekly rotation, print, PNG, present mode - [Font Pairing](https://qrdyframes.qrdyai.com/tools/font-pairing): free tool: Google font pairing with live preview, 70+ curated heading + body combinations by style, body suggestions per heading font, locks, Space for the next pair, compare side by side, Copy CSS, saved pairs; fonts loaded by name only, your text never leaves the browser - [QR Code Scanner from Image](https://qrdyframes.qrdyai.com/tools/qr-code-scanner-from-image): free tool: QR code scanner from image or screenshot, reads several codes at once, checks the link for phishing warning signs before you open it, nothing uploaded ## TL;DR - Timer tab: 5:00 is set on load; quick buttons 1 / 3 / 5 / 10 / 15 minutes set and start in one tap; minutes (0–99) and seconds (0–59) with +/− steppers; an optional activity name shows above the digits; Start / Pause / Resume, Reset and + 1 min (also while running); keys Space, R, +, F, Escape - Display: big digits (m:ss, h:mm:ss above an hour) inside an SVG ring that drains as time passes, amber in the last 20 % or last minute (whichever is shorter), red in the last 10 seconds; at zero the ring is empty, the digits read 0:00, a Time's up message appears and the tone plays; prefers-reduced-motion = stepped ring, no animation - Accurate: the remaining time is the distance to a target timestamp, so a background tab or dimmed screen cannot drift it; on return the display jumps to the true time and an end that happened while hidden fires once; Screen Wake Lock while running where supported; the tab title shows the remaining time - Sound: Chime, Bell, Beep, Gentle synthesised with Web Audio (no audio files), volume Loud / Soft / Off, Test button, optional tick in the last 10 s (off by default); the audio context is unlocked on the first tap so iOS plays the end tone - Pomodoro tab: 25/5/15 minutes by default (all editable), long break after every 4 focus sessions, phase and "Session n of 4" shown, Auto-start next phase (default on) with the tone between phases, "Focus sessions today" counter that resets at local midnight or by hand - Presets tab: save the current length + activity + tone under a name, start with one tap, edit, reorder, delete; 7 defaults (Think-pair-share 3 min, Clean-up 5 min, Reading 10 min, Group work 15 min, Morning block, Centers x4, Test with breaks) that can be removed; chains of up to 24 named steps run back to back with the tone between steps, "Step 2 of 3" and the next step shown, Skip step and Restart chain, save a chain as a preset; up to 24 presets - Repeat use: last length, tone, volume, tick, Pomodoro lengths, auto-start, today's counter and presets are kept in this browser under one local-storage key (qrdy.classroom-timer.v1); works without storage, with a notice; nothing typed is uploaded or sent to analytics - Full screen for projectors: Fullscreen API with a covered-window fallback, dark background, digits and ring sized to the screen, activity and step shown, controls fade after 3 s of no input, Space / Escape work; no promotion inside full screen - Routine tab: the daily block in one tap; 3 starter routines (Morning block, Centers x4, Test with breaks); Centers rotation helper (2–8 stations, minutes per station, switch none / 30 s / 1 min / 2 min, optional station and group names) expands into normal steps; while it runs an Up next strip shows the next 2 steps and a Group → Station table shifts one station per round; on a return visit a Welcome back card starts the last routine, with a Mon–Fri row of days it ran - Share a routine: a link with the routine only after the # (never sent to a server or analytics), Copy link, native share sheet, a big QR on the display (names dropped from the QR first if the link passes 2,000 characters), a 1080 × 1350 routine card PNG; the shared link opens a read-only card with Use this routine and Make your own routine; a follow-along link (#r=…&t=…) shows the same step and countdown on another device from its own clock (no live sync: pausing needs a new link) - Pick who goes next inside Canva slides: Spin Wheel Maker (https://www.canva.com/apps/AAGIua1prrA) ## How to use the classroom timer 1. Set the time: tap a quick button (1, 3, 5, 10, 15 minutes) to set and start at once, or type minutes and seconds and press Start. Add an activity name such as "Silent reading" so the class sees what the time is for. 2. Watch the circle: it drains as time passes, turns amber near the end and red in the last ten seconds. Press F or the Full screen button for the projector; Space pauses, + adds a minute, R resets. 3. At zero the digits read 0:00, a Time's up message appears and your chosen tone plays. Press Reset or Space to run the same length again, or save the timer as a preset for next lesson. ## Classroom timer ideas - **Transitions:** A 2-minute timer on the board turns packing up or moving seats into a race against the circle, not against you. - **Think-pair-share:** One minute to think, two to talk in pairs, then share: chain the three steps so the bell does the pacing. - **Clean-up:** Five minutes, the Bell tone and the activity name on screen; the room is tidy when the ring is empty. - **Tests and quizzes:** Set the full length, go full screen, and the amber and red bands give a silent warning without you calling the time. - **Centres and stations:** A chain of equal steps, one per rotation, with the tone between them; the next station's name shows under the timer. - **Brain breaks:** A 3-minute timer with the Gentle tone for stretching or quiet time, then straight back to the lesson. ## Run your daily routine in one tap A routine is the block you run every morning, saved once and started with one tap: for example morning work 15 minutes, four centers of 12 minutes with a 1-minute switch, then clean-up 5 minutes. The Routine tab ships with 3 starters (Morning block, Centers x4, Test with breaks) that you can edit or delete, and on your next visit a "Welcome back" card above the timer starts the routine you ran last, with a small Mon–Fri row of the days it ran this week. The Centers rotation helper builds the steps for you: pick 2 to 8 stations, the minutes per station and a switch time (none, 30 seconds, 1 minute or 2 minutes), optionally name the stations and groups, and it adds "Centers 1 of 4", "Switch", "Centers 2 of 4" and so on. While it runs, an Up next strip shows the next two steps with their lengths, and a Group → Station table moves every group on by one each round, large enough to read from the back of the room in full screen. Share a routine with a teaching partner, a para or a sub: Share routine makes a link (or a QR code to scan, or a routine card picture for a teacher group) that opens a read-only copy with Use this routine and Make your own routine. The routine lives only in the part of the link after the #, which browsers never send to a server. A follow-along link also carries when the current step ends, so a second screen, a station tablet or a student Chromebook shows the same countdown from its own clock. ## Pomodoro timer The Pomodoro technique is a focus method: work on one task for 25 minutes, rest for 5, and after 4 of those sessions take a longer 15-minute break. The fixed rhythm removes the decision of when to stop, which is what makes it work for marking, lesson planning, revision and homework. The Pomodoro tab runs that cycle for you. It shows the current phase (Focus, Short break or Long break) and "Session 2 of 4", plays the end tone between phases and, with Auto-start on (the default), moves to the next phase by itself. All three lengths are editable, so a class can run 15/3/10 while an adult revises on 50/10/20. A counter of focus sessions completed today sits under the timer and resets at local midnight (or when you press Reset count), so a study afternoon or a revision week has a visible tally without an account. ## Chained timers and presets Chained timers run a lesson plan as one sequence: on the Routine tab build steps such as "Warm-up 5 min → Group work 15 min → Share 5 min" (minutes and seconds per step), press Run routine, and each step starts when the previous one ends, with the end tone between them and "Step 2 of 3 · Group work" plus the next step's name on screen. Skip step jumps ahead when the class is quicker than planned; Restart chain begins again. Presets are how you reuse all this. Save the current length, activity name and tone under a name ("Reading 10 minutes"), or save a chain, and start it from the Presets tab with one tap next lesson; edit, reorder or delete any of them, including the 7 that come with the page (Think-pair-share 3 min, Clean-up 5 min, Reading 10 min, Group work 15 min, Morning block, Centers x4, Test with breaks). Up to 24 presets and 24 steps per chain, all stored in this browser. ## Why this timer stays accurate in the background The countdown is computed from a target time, not by counting seconds, so a background tab, a dimmed phone or a laptop lid closed for a minute cannot make it drift. When you come back, the display jumps to the true remaining time; if the time ran out while you were away, the Time's up state and the tone fire once on return. While a timer runs, the page asks the device to keep the screen awake (where the browser allows it) and shows the remaining time in the tab title, so you can see it from another tab. Nothing about the timer leaves the browser: activity names, preset names and chain names are stored locally and never appear in analytics. ## What is a classroom timer? A classroom timer is a countdown made to be seen by a whole room: large digits, a visual cue of how much time is left (here a ring that drains and changes colour), a clear sound at the end and quick ways to set common lengths. Teachers use one for transitions, tests, group work, clean-up and brain breaks, usually on a projector or smartboard. This one runs in the browser, needs no account, and keeps presets and chained steps for lessons that repeat. ## What is a Pomodoro timer? A Pomodoro timer runs the Pomodoro technique: 25 minutes of focused work, a 5-minute break, and a longer 15-minute break after every 4 focus sessions, over and over. Here it is the Pomodoro tab of the classroom timer: the lengths are editable, the next phase can start by itself, the tone marks each change, and a counter shows how many focus sessions you finished today. https://qrdyframes.qrdyai.com/tools/pomodoro-timer opens the tab directly. ## Controls | Control | Range | Default | Notes | |---|---|---|---| | Length | 0–99 min, 0–59 s | 5:00 | inputs with +/− steppers; at least one second | | Quick buttons | 1 / 3 / 5 / 10 / 15 min | | set and start in one tap | | Activity name | optional text | empty | shown above the digits and in full screen; never leaves the browser | | Start / Pause / Resume | button or Space | | Reset = R; + 1 min = +; Full screen = F; Escape exits | | Tone | Chime, Bell, Beep, Gentle | Chime | Web Audio, no files; Test button | | Volume | Loud · Soft · Off | Loud | Off = silent end, visual only | | Tick in last 10 s | on / off | off | one soft tick per second | | Pomodoro lengths | 1–99 min each | 25/5/15 min | long break after every 4 focus sessions | | Auto-start next phase | on / off | on | tone plays between phases either way | | Focus sessions today | counter | 0 | resets at local midnight; Reset count | | Presets | up to 24 | 7 defaults | save, start, edit, reorder, delete; local storage only | | Routine | up to 24 steps, minutes and seconds each | 3 starter routines | Run routine, Skip step, Restart routine, Save changes / Save as new | | Centers rotation | 2–8 stations; switch none · 30 s · 1 min · 2 min | 4 × 12 min, 1 min switch | optional station and group names; Group → Station table while running | | Share routine | link · QR · routine card PNG · follow-along link | | names only after the #; QR capped at 2,000 characters | | Full screen | button or F | | Fullscreen API or covered window; controls hide after 3 s | ## Frequently Asked Questions ### Is the classroom timer free? Yes, completely: no account, no sign-up, no limit on how often you use it and no watermark in full screen. It is one of the free tools made by the team behind Qrdy Frames. ### Does it work on a projector or smartboard? Yes. Press F or the Full screen button: the page goes dark with huge digits and a ring sized to the screen, the activity name and step above them, and the controls fade out after three seconds of no input (move the mouse or tap to bring them back). Space pauses and resumes, + adds a minute, Escape exits. On browsers without the Fullscreen API (iPhone Safari) the same view covers the window instead. ### Does it keep time if I switch tabs or the screen dims? Yes. The remaining time is the distance to a target timestamp, never a count of ticks, so a background tab or a dimmed phone cannot slow it down. When the tab is visible again the display jumps to the true time, and if it ran out while hidden the Time's up state and the tone fire once on return. While running, the page also asks the device to keep the screen awake where the browser supports it. ### Can I add time while it runs? Yes. Press + 1 min (or the + key) while the timer is running or paused and the end moves one minute later; the ring grows to match. After the bell, + 1 min gives one more minute ready to resume. ### Can I change or turn off the sound? Yes. Open Sound to choose Chime, Bell, Beep, Gentle, each synthesised in the browser (no audio files), set the volume to Loud, Soft or Off, and press Test to hear it. An optional tick in the last ten seconds is off by default. Browsers only allow sound after a tap, so the first click on the page unlocks it; the end tone then plays on its own, including on iPhone and iPad. ### Can I save timers for later? Yes. On the Presets tab, save the current length, activity name and tone under a name, or save a chain of steps; start any preset with one tap, and edit, reorder or delete them. 7 sensible defaults are included and can be removed. Presets, your last length, the sound and the Pomodoro settings are kept in this browser's local storage (up to 24 presets), not on a server, so they do not follow you to another device. ### What is the Pomodoro technique? A way of working in fixed intervals: 25 minutes of focus, a 5-minute break, and a longer 15-minute break after every 4 focus sessions. The Pomodoro tab runs this cycle, shows the phase and session number, plays the tone between phases, auto-starts the next one if you want, and counts the focus sessions you finish today. ### Can I run several timers back to back? Yes. Build a routine on the Routine tab: up to 24 named steps with their own minutes and seconds, or let the Centers rotation helper make them. Run routine starts them one after another with the tone between steps, shows "Step 2 of 3" with the step name and the next step, and has Skip step and Restart chain buttons. Save the chain as a preset to reuse it. ### Can I share my routine with another teacher? Yes. On the Routine tab (or next to any routine in Presets) press Share routine, then send the link, show a QR code on the board, or download a routine card picture. The other teacher sees the steps and total time and taps Use this routine to add it to their own presets. The routine, step, station and group names live only after the # in the link, which browsers never send to a server, and none of it goes into analytics. ### Can students see the timer on their own Chromebooks? Yes. While a routine runs, copy the follow-along link (or show its QR code) and open it on the Chromebooks, a station tablet or a co-teacher's laptop: each device shows the same step and countdown, counted from its own clock. There is no live connection, so if you pause, skip or add time, share a new link. ### Is anything I type saved or uploaded? Nothing is uploaded. Activity names, preset names and chain steps are kept only in this browser's local storage under one key, and the analytics record only counts and settings such as the length as a range and which tone was chosen, never your text. Clearing site data removes everything. If your browser blocks storage, the timer still works but cannot keep presets or settings, and the page says so. ## Conclusion ### Way forward - Start a timer now: [Classroom Timer](https://qrdyframes.qrdyai.com/tools/classroom-timer); Pomodoro: [Pomodoro tab](https://qrdyframes.qrdyai.com/tools/pomodoro-timer) - Pick who goes next inside a Canva slide: Spin Wheel Maker (https://www.canva.com/apps/AAGIua1prrA) - Split the class into teams: [Random Team Generator](https://qrdyframes.qrdyai.com/tools/random-team-generator); spin for a yes or no: [Yes or No Wheel](https://qrdyframes.qrdyai.com/tools/yes-or-no-wheel); draw a letter: [Random Letter Generator](https://qrdyframes.qrdyai.com/tools/random-letter-generator) - Other free tools: [Free Online Tools](https://qrdyframes.qrdyai.com/tools), [Christmas Ornament Photo Maker](https://qrdyframes.qrdyai.com/christmas-ornament-photo-maker), [Circle Crop Image](https://qrdyframes.qrdyai.com/circle-crop-image), [Heart Photo Frame](https://qrdyframes.qrdyai.com/shapes/heart-frame), [Password Generator](https://qrdyframes.qrdyai.com/tools/password-generator), [Bulk QR Code Generator](https://qrdyframes.qrdyai.com/tools/bulk-qr-code-generator), [Random Team Generator](https://qrdyframes.qrdyai.com/tools/random-team-generator), [Yes or No Wheel](https://qrdyframes.qrdyai.com/tools/yes-or-no-wheel), [Random Letter Generator](https://qrdyframes.qrdyai.com/tools/random-letter-generator), [Bingo Card Generator](https://qrdyframes.qrdyai.com/tools/bingo-card-generator), [Lorem Ipsum Generator](https://qrdyframes.qrdyai.com/tools/lorem-ipsum-generator), [Random Color Generator](https://qrdyframes.qrdyai.com/tools/random-color-generator), [2027 Calendar](https://qrdyframes.qrdyai.com/tools/2027-calendar), [Seating Chart Maker](https://qrdyframes.qrdyai.com/tools/seating-chart-maker), [Font Pairing](https://qrdyframes.qrdyai.com/tools/font-pairing), [QR Code Scanner from Image](https://qrdyframes.qrdyai.com/tools/qr-code-scanner-from-image) - What this site is about: [Qrdy Frames](https://qrdyframes.qrdyai.com/) ## Related pages - [Free Online Tools](https://qrdyframes.qrdyai.com/tools): every free tool on one page (16 tools) - [Christmas Ornament Photo Maker](https://qrdyframes.qrdyai.com/christmas-ornament-photo-maker): free tool: drop a photo and see it inside ornaments, stockings, mittens and more - [Circle Crop Image](https://qrdyframes.qrdyai.com/circle-crop-image): free tool: crop any photo into a perfect circle in seconds - [Heart Photo Frame](https://qrdyframes.qrdyai.com/shapes/heart-frame): free tool: place any photo inside a heart shape and download a transparent png - [Password Generator](https://qrdyframes.qrdyai.com/tools/password-generator): free tool: strong passwords, passphrases, PINs and developer secrets - [Bulk QR Code Generator](https://qrdyframes.qrdyai.com/tools/bulk-qr-code-generator): free tool: hundreds of QR codes from a list or CSV, as PNG or SVG in one ZIP - [Random Team Generator](https://qrdyframes.qrdyai.com/tools/random-team-generator): free tool: split names into fair random teams, save class lists, avoid repeat pairs, present on a projector - [Yes or No Wheel](https://qrdyframes.qrdyai.com/tools/yes-or-no-wheel): free tool: spin for a yes or no (or maybe), keep a history of your questions, best of 3, custom decision wheel - [Random Letter Generator](https://qrdyframes.qrdyai.com/tools/random-letter-generator): free tool: random letters A–Z with no repeats, vowels or consonants, a letter wheel, random words, Scattergories timer - [Bingo Card Generator](https://qrdyframes.qrdyai.com/tools/bingo-card-generator): free tool: printable bingo cards from words, emoji or numbers 1–75, 3x3 / 4x4 / 5x5, 1–200 unique cards, bingo caller with full screen, winner check, saved sets, play link - [Lorem Ipsum Generator](https://qrdyframes.qrdyai.com/tools/lorem-ipsum-generator): free tool: lorem ipsum dummy text with exact word or character counts, HTML
tags, and placeholder images at any size (PNG / JPG / WebP), presets and a size set - [Random Color Generator](https://qrdyframes.qrdyai.com/tools/random-color-generator): free tool: random color and palette generator with locks, styles and harmony rules, a color palette from any image (never uploaded), HEX / RGB / HSL copy, contrast check, saved palettes and a color of the day - [2027 Calendar](https://qrdyframes.qrdyai.com/tools/2027-calendar): free tool: printable 2027 calendar with US holidays, year on one page or month per page, Letter / A4, portrait / landscape, Sunday or Monday start, week numbers, your own events with countdowns, saved in the browser - [Seating Chart Maker](https://qrdyframes.qrdyai.com/tools/seating-chart-maker): free tool: classroom and wedding seating chart maker, rows / pairs / groups / U-shape or round and long tables, random shuffle with keep-apart and keep-together rules, drag or tap to swap, saved classes with a weekly rotation, print, PNG, present mode - [Font Pairing](https://qrdyframes.qrdyai.com/tools/font-pairing): free tool: Google font pairing with live preview, 70+ curated heading + body combinations by style, body suggestions per heading font, locks, Space for the next pair, compare side by side, Copy CSS, saved pairs; fonts loaded by name only, your text never leaves the browser - [QR Code Scanner from Image](https://qrdyframes.qrdyai.com/tools/qr-code-scanner-from-image): free tool: QR code scanner from image or screenshot, reads several codes at once, checks the link for phishing warning signs before you open it, nothing uploaded ## Licence and affiliation The classroom timer is free to use for any purpose; activity names, presets and chains stay in your browser and are never stored by us. Qrdy Frames is an independent tool and isn't affiliated with Canva. --- [All pages (llms.txt)](https://qrdyframes.qrdyai.com/llms.txt) · [Full content](https://qrdyframes.qrdyai.com/llms-full.txt) · [Qrdy docs](https://docs.qrdyai.com) · [Qrdy](https://www.qrdyai.com) · Updated 2026-11-13