Video Slideshow Maker is shaped around how people actually use video editing and conversion utilities online: open the page, drop in a file, get the result. Turn a stack of photos into an MP4 slideshow with per-slide durations, crossfades, and an optional soundtrack. Pick the resolution (up to 1080p), frame rate, and transitions, then download a single MP4 — all processed in your browser with FFmpeg WebAssembly. The interface stays out of the way once the work begins so the engine can use the available CPU and memory for the actual transformation.
Technically, the work is done by FFmpeg compiled to WebAssembly, loaded as part of the page. Inputs in MP4, WebM, MOV, MKV, AVI, FLV, and OGV format are recognised automatically and validated before the engine begins processing. Files up to 500 MB are supported per run; that ceiling keeps browser memory usage stable on a wide range of devices.
Video Slideshow Maker parses your file with FFmpeg compiled to WebAssembly entirely inside the browser, applies the options you selected, and returns a download. The processing has no network step, which means a slow or intermittent connection does not slow down the work — once the page is loaded, only your CPU and RAM are involved.
Anyone who works with video editing and conversion on a casual basis — product teams shipping release demos, educators editing lecture clips, social-media managers cutting reels — finds Video Slideshow Maker a quick way to get the result. The page loads in under a second, the controls are visible from a single screen, and the result downloads or copies in one click.
Reach for Video Slideshow Maker when you need a predictable result on a single file. The page works on the first visit, the controls are visible without a menu, and the output is delivered the moment the engine finishes.
A practical note on limits: Video Slideshow Maker accepts inputs up to 500 MB per run, and the tool processes one input at a time to keep memory usage predictable. If you ever bump into the ceiling, the cause is the size of the input.
Video Slideshow Maker is intentionally narrow in what it does, which makes it easy to slot into a longer workflow. Take its output, hand it to whichever next tool fits the job, and Video Slideshow Maker stays out of your way until the next time you need it.
Video Slideshow Maker is honest about scope: it handles a single, well-defined video editing and conversion step. Specialist edge-case work — uncommon formats, very large inputs, or pipelines that need scripting — is what dedicated desktop apps are for. This page handles the common case quickly.
The output handed back by Video Slideshow Maker is `{name}-edited.{ext}`. If you would prefer to keep the result in the browser instead of downloading it, you can copy it from the result panel and paste it directly into another tab — useful when the next tool in your workflow expects pasted text rather than a file.
Some context on why Video Slideshow Maker exists in this form: modern File APIs, high-performance JavaScript engines, and well-maintained open-source libraries now make it possible to perform video editing and conversion work entirely in the browser. Video Slideshow Maker is built on top of that capability, which is why a single page can host the full pipeline.
If you also use a command-line tool for video slideshow maker, Video Slideshow Maker is a convenient alternative for the times you are on a different machine or helping someone who is not comfortable in a terminal. The output is a standard file in the format documented above.
If you want to get the most out of Video Slideshow Maker, three small habits help. Drag-and-drop is faster than the file picker once you get used to it. The keyboard shortcut for downloading the result is whatever your browser uses for "save link as," because the result is a normal download. And if you are working on a sensitive file, processing in an Incognito or Private window is a good extra layer — it leaves no trace in browser history when the tab closes.
When something goes wrong, the cause is usually one of three things: a malformed input, a browser that is out of memory, or a corporate proxy that is interfering with the page's static assets. The first two are easy to diagnose; the third typically requires asking your IT team to allow FFmpeg compiled to WebAssembly to load.
Open the workspace above to start using Video Slideshow Maker. The engine loads on the first interaction so the page itself stays light, and once the tool is warm it processes subsequent jobs quickly. The moment the page is interactive, the tool is ready to do real work on your file.
A WebAssembly build of FFmpeg loads in this page. Each image is treated as a still input that loops for the duration you pick, scaled and padded to fit the chosen resolution. Crossfades are applied with the xfade filter and the result is encoded to MP4 with H.264 video — entirely on your device.
Server tools have native multi-threaded FFmpeg with hardware-accelerated H.264 encoding. The WebAssembly build is single-threaded and uses software encoding, typically 4–8× slower per frame. The trade-off is total privacy — your photos never leave your device.
Up to 60 images and 200MB of total image data. Each individual image must be under 30MB. For very large albums, downscale your photos first or split into multiple slideshows.
1080p landscape (1920×1080), 720p landscape, square 1080×1080 (Instagram), 9:16 vertical 1080×1920 (TikTok / Reels / Shorts), and 480p landscape. Photos are scaled and letterboxed to fit while preserving aspect ratio.
Yes — toggle "Set duration per image individually" to enter a duration (in seconds) for each slide. Otherwise the same duration is used for every slide.
Yes — pick an audio file (MP3, WAV, AAC, M4A, OGG, FLAC) up to 100MB. Use the "Match audio length" toggle to either trim the slideshow to the music length or play the music underneath the full slideshow runtime.
Both render an MP4 from images. This Slideshow Maker treats audio as optional — it is great for silent photo slideshows. The "Video from Images + Audio" tool requires an audio file because its primary purpose is music-driven montages.
No. The rendering runs entirely in your browser tab. Nothing is transmitted, stored, or logged. Closing the tab erases the photos and audio from memory immediately.
Video Slideshow Maker is a static page running an open-source engine in your browser, so a typical corporate firewall does not get in the way as long as it allows JavaScript and WebAssembly to load from Favtoo. For teams that need to host it themselves on an internal network, the underlying engine (FFmpeg compiled to WebAssembly) is open-source and can be packaged into a private build with the same behaviour. Reach out via the Contact page if that is something you are exploring.
No installation is needed. Video Slideshow Maker runs as a normal web page, with no browser extension, no native helper, and no separate desktop client to download. That is partly a privacy choice — extensions can request broad permissions, while a regular page is sandboxed by default — and partly a convenience one: you can use Video Slideshow Maker on any computer you have temporary access to without leaving anything installed on it.
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 500 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Inputs are capped at 500 MB per file, which keeps memory usage stable across phones, tablets and older laptops. You can run Video Slideshow Maker as often as you need; every run produces a full-quality result.
Video Slideshow Maker runs in any modern mobile browser — Safari, Chrome, Firefox and the in-app browsers in most messaging apps all support the underlying APIs. Performance depends on the device: a recent phone handles typical inputs nearly as fast as a laptop, while older devices may take a few seconds longer near the 500 MB ceiling. The interface lays out cleanly on small screens, so you do not need to pinch-zoom to see the controls.
Video Slideshow Maker can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
Video Slideshow Maker accepts MP4, WebM, MOV, MKV, AVI, FLV, and OGV. If your input is in a format that is not directly supported, convert it first using one of Favtoo's converter tools — every Favtoo converter outputs a file that is a clean input to the next tool in the chain.
Video to GIF
Convert any video clip to an animated GIF entirely in your browser. Pick the start, length, frame rate, and width — your file is processed locally with FFmpeg WebAssembly and never uploaded.
Screen Recorder
Record your screen, a window, or a browser tab directly in your browser. Optionally include system audio and your microphone. Capture, preview, and download the video without installing any app — and without uploading anything.
Webcam Recorder
Record your webcam directly in your browser with optional microphone audio. Pick the resolution (480p, 720p, or 1080p), frame rate, and mirror mode, then capture and download the result without installing any app.
Screen + Webcam Recorder
Record your screen with your webcam composited into a picture-in-picture corner — perfect for tutorials, course videos, demos, and reaction recordings. Pick the camera position, size, and audio sources, then capture and download in your browser.
Video from Images + Audio
Combine a stack of photos with a music track or narration into a single MP4 video. Pick the resolution, per-slide duration, transitions, and let the slideshow length match the audio. All processed in your browser with FFmpeg WebAssembly.
Video Trimmer
Set precise in and out timestamps, snap to keyframes when needed, and document handles for social-safe cutdowns.
Video Splitter
Split any video into 2–10 equal-length pieces, packaged as a downloadable ZIP. Files are processed entirely in your browser with FFmpeg WebAssembly using lossless stream-copy.
Video Merger
Combine multiple video clips into a single MP4 in your browser. Drop in MP4, WebM, MOV, MKV, AVI or FLV files, drag to reorder them, pick a target resolution and frame rate, and merge — all locally with no uploads.