Most tools here do one thing well and are built to be chained. The browser-based ones never upload your file; the local ones handle batches — the first for one image, the second for a hundred. Open source is genuinely level with commercial software in this area, with colour-managed professional workflows the one exception.
An editor built for pixel art and animation, with onion skinning, a frame timeline and sprite sheet export. Unlike a general painting program every tool snaps to the pixel grid, so anti-aliasing never appears where you did not ask for it.
Turns a voice note into structured text — summary, bullets, action items — rather than a raw transcript. For thinking aloud on the move and organising afterwards.
A resource list for FFmpeg, recording, converting and streaming audio/video. Unlike the FFmpeg docs, it gathers command examples, GUIs and library wrappers per language.
Awesome List · Video · Reference · Freechecked 2026-11-09archive
A list of plugins and resources for VLC, the cross-platform media player. Unlike general media-player lists, it focuses on VLC and libVLC alone: plugins, language bindings, projects built on top.
Awesome List · Video · Reference · Freechecked 2026-11-09archive
Modelling, texturing, rigging, simulation, rendering and video editing in one package. Against Maya or 3ds Max it is free, and it keeps the entire pipeline in a single program so nothing is lost in file handoffs.
Open Source · Free · 3D · Desktopchecked 2026-11-09archive
Turns a snippet into a shareable image with theme, window chrome and line numbers under your control. Unlike a screenshot the result is reproducible and legible.
A PDF alternative for scanned documents producing much smaller files at the same quality. You meet it often in older archives, so it is worth knowing what it is.
A hand-drawn-style whiteboard. Looking deliberately rough is functional rather than stylistic — it stops a draft architecture being mistaken for a finished one.
Open Source · Design · In Browser · Freechecked 2026-11-09archive
A font creation and editing program that converts between TTF, OTF and WOFF and lets you work on glyph hinting. Unlike an online font converter, you can get at the glyphs themselves.
Open Source · Free · Desktop · Designchecked 2026-11-09archive
Merge, split, compress and convert. Unlike desktop PDF tools it needs no installation; be careful with sensitive documents — the file is uploaded to a server, and a local tool may be the better call.
Tool · Freemium · In Browserchecked 2026-11-09archive
A vector editor that uses SVG as its native format. Against Illustrator, the file is clean SVG ready for the web — no export step in between, and you can hand-edit the source.
Open Source · Free · Desktop · Designchecked 2026-11-09archive
A painting program for digital art and concept work, with a strong brush engine and frame-by-frame animation. Unlike GIMP it was built for drawing rather than photo editing, and brush latency and stabilisation are tuned accordingly.
Open Source · Free · Desktop · Designchecked 2026-11-09archive
Cuts and joins video without re-encoding, working on keyframe boundaries. Against a normal editor the operation takes seconds and loses no quality — trimming the head and tail off an hour of footage no longer means opening a timeline.
Open Source · Desktop · Video · Freechecked 2026-11-09archive
An online tool for diagrams and flowcharts with team collaboration. Compared with draw.io its team and integration features are stronger, while the free tier is limited.
Freemium · In Browser · Designchecked 2026-11-09archive
Markdown presentation ecosystem that compiles plain text files into HTML, PDF, and PowerPoint decks via CSS themes; keeps slides version-controlled in Git unlike drag-and-drop slide editors.
Dumps the technical identity of a video or audio file: codec, bitrate, frame rate, colour space, container details. Unlike a player’s properties dialog it goes to stream level, which makes it the source of truth when something will not play.
Open Source · Free · Audio · Desktopchecked 2026-11-09archive
A tool generating flowcharts and diagrams from text — “Markdown for diagrams”. Unlike drawing programs you embed the diagram as code and keep it in version control.
Open Source · Design · Docs · Freechecked 2026-11-09archive
Generates diagrams from text; GitHub and GitLab render Mermaid natively. Unlike drawing tools such as draw.io the source is plain text, so it lives in version control with a readable diff.
A real-time, infinite whiteboard for diagrams and brainstorming. Unlike diagram tools such as draw.io it is free-form — sticky notes, sketches and templates suited to running team workshops.
Browser-based piano-roll sequencer for composing multi-track melodies and exporting MIDI files with zero setup; built for instant sketching rather than full DAW production.
Free · Audio · In Browser · Interactive · No Account Neededchecked 2026-11-09archive
Open-source, browser-based video editor that processes media locally on your device without uploading files; serves as a privacy-focused alternative to cloud-tied editors like CapCut.
Free · Open Source · Video · In Browser · Privacychecked 2026-11-09archive
An image editor in the browser that opens PSD, XCF, Sketch and XD files with their layers intact. Against GIMP it installs nothing and its PSD compatibility is genuinely good, which makes it the shortest path to opening a file someone sent you.
In Browser · Free · Designchecked 2026-11-09archive
A pixel art and sprite animation editor in the browser. Against Aseprite it is free and needs no install; in exchange the layer and brush tools are thinner — enough for your first sprite.
Open Source · In Browser · Free · Designchecked 2026-11-09archive
A tool for drawing pixel art in the browser, with drawings shareable with the community. Unlike desktop tools such as Aseprite it needs no install; the trade-off is more limited animation and layer features.
Design · In Browser · Freechecked 2026-11-09archive
Cloud-based image-editing tools that run in the browser. Unlike Photoshop it needs no install and has a free tier; in exchange, advanced features are limited.
Design · In Browser · Freemiumchecked 2026-11-09archive
Generates Sankey flow diagrams from text input, for energy, budget or funnel flows. Unlike general diagram tools it does one chart type, and takes its input as text rather than as drawing.
Open Source · In Browser · Free · Designchecked 2026-11-09archive
A screenshot and recording tool for Windows that chains post-capture steps: upload, shorten, OCR. What separates it from Snipping Tool is that workflow automation — capture and link-on-clipboard becomes one shortcut.
Open Source · Free · Desktop · Toolchecked 2026-11-09archive
A converter wrapping FFmpeg with a UI, offering the intermediate codecs and batch jobs editors need. Against HandBrake it is aimed at post-production — ProRes, DNxHD and subtitle burn-in sit in the menu rather than in a command line.
Open Source · Free · Video · Toolchecked 2026-11-09archive
Image compression with a side-by-side comparison, running MozJPEG, WebP and AVIF encoders in the browser through WebAssembly. Unlike TinyPNG nothing is uploaded, and every encoder setting is yours to tune.
Open Source · In Browser · Free · Toolchecked 2026-11-09archive
A subtitle editor that shows a waveform and spectrogram underneath, reads over 200 formats, shifts timings and extracts burned-in subtitles by OCR. Those synchronisation tools are what separate it from simple subtitle editors.
Open Source · Desktop · Free · Audiochecked 2026-11-09archive
A subtitle editor in the browser for opening .srt and .vtt files and fixing timings and text. Against desktop tools like Subtitle Edit it installs nothing, which is what you want for a quick fix on someone else’s machine.
In Browser · Free · Videochecked 2026-11-09archive
Edits SVG path data (the d attribute) visually while listing the commands one by one. Against a general vector editor you get at the raw path text, which is what you want for fixing a hand-written icon.
Open Source · In Browser · Frontend · Freechecked 2026-11-09archive
Shrinks PNG and JPEG files through selective quantisation: drag, drop, no settings. Against Squoosh it offers batch processing and an API — Squoosh for one image, this for a hundred.
Converts a bitmap image into vector art. Against Illustrator’s trace, its edge detection is noticeably cleaner — it is a good route to recovering a logo from a low-resolution PNG.
A tool combining flowcharts, wireframes, sticky notes and mind maps on one canvas. Unlike single-purpose tools it keeps them all together in one document.
Batch image conversion and processing that reads over 500 formats and writes around 70, with resize and watermark steps chained together. Unlike online converters it handles thousands of files locally with no size cap.