Open source focus
Open Source Alternatives to Imageresize Zlabs
57 open source Image Optimization options similar to Imageresize Zlabs, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
PixellizeDeveloper ToolsOpen source
- HeymarkDocument Conversion
Open source
ClickUp67Project ManagementSan Francisco, United States$531.5MOpen source
Gitpod64Developer ToolsTübingen, Germany$28.0MOpen source · Self-hostable
Rewind62Personal Agent Data VaultOttawa, CanadaOpen source
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
Pitch62Presentation SoftwareBerlin, Germany$73.0MOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Cluely58Agentic AISan Francisco, United StatesOpen source
timeOS56PersonalSan Francisco, United States$3.3MOpen source
Raycast55ProductivityLondon, United Kingdom$17.7MOpen source
Superlist55Productivity SoftwareBerlin, Germany$14.4MOpen source
Lean54MLOpsSan Francisco, United StatesOpen source
M Magical54Artificial IntelligenceSan Francisco, United StatesOpen source
Plane53Project ManagementSan Francisco, United States$4.0MOpen source
Taskade49SpaceTechNew York, United States$1.0MOpen source
SageOx47Artificial IntelligenceSeattle, USA$15.0MOpen source
AYD44Creator EconomySan Francisco, United StatesOpen source
Microsoft43Operating SystemRedmond, United StatesOpen source
Joulix AI Technologies35AI Tools & AppsSan Francisco, Israel$2.3MOpen source
Readwise Reader25Consumer AppRaleigh, United StatesOpen source
Sigla23Developer ToolsOpen source
Unpaper23AI Tools & AppsOpen source
Omnivore23Consumer AppOpen source · Self-hostable
Zotero22Research ToolsFairfax, United StatesOpen source · Self-hostable
Recallguru22AI Search EngineOpen source
- BEBestpractix19LegalTel Aviv, Israel
Open source
Cap19Developer ToolsSan Francisco, United StatesOpen source · Self-hostable
Popdocs17Productivity SoftwareOpen source
superwhisper17Artificial IntelligenceNew York, United StatesOpen source
- I3i313Software Development
Open source · Self-hostable
- GenColoring AI10Generative AI
Open source
Convo10Voice AISan Francisco, United StatesOpen source
- EUEuro-Office10SoftwareEurope
Open source · Self-hostable
- EUEurostack10SoftwareEurope
Open source · Self-hostable
LibreChat10AINew York, United StatesOpen source · Self-hostable
Agentradio7AI Coding AssistantOpen source
Bnine4Creative OperationsOpen source
DigicardsDigital Business CardsLeicester, EnglandOpen source
- buddy.AI Agent
Open source
FractaskOpen SourceOpen source · Self-hostable
StepnewsAI Search EngineOpen source
- GhostgptGenerative AI
Open source
JustemailAI Search EngineOpen source
SwwitchCollaboration PlatformOpen source
QuoresWorkflow AutomationStourbridge, EnglandOpen source
Naps2 SoftwareDocument ManagementOpen source · Self-hostable
HabitaproAgentic AIOpen source
ThunderbirdEmail ClientOpen source · Self-hostable
IamfamilyAI AgentOpen source
ShiftdocsDocument ConversionOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
HtmlslidesCreator EconomyOpen source
- ClawdexPersonal Knowledge Management
Open source
LonzeDeveloper ToolsOpen source
Orcaforge3D PrintingOpen source · Self-hostable
PortacleDeveloper ToolsOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Pixellize | Developer Tools | Open source | — | — | — | |
| Document Conversion | Open source | — | — | — | ||
| ClickUp | Project Management | Open source | San Francisco, United States | $531.5M | 67 | |
| Gitpod | Developer Tools | Open source · Self-hostable | Tübingen, Germany | $28.0M | 64 | |
| Rewind | Personal Agent Data Vault | Open source | Ottawa, Canada | — | 62 | |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 | |
| Pitch | Presentation Software | Open source | Berlin, Germany | $73.0M | 62 | |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| Cluely | Agentic AI | Open source | San Francisco, United States | — | 58 | |
| timeOS | Personal | Open source | San Francisco, United States | $3.3M | 56 | |
| Raycast | Productivity | Open source | London, United Kingdom | $17.7M | 55 | |
| Superlist | Productivity Software | Open source | Berlin, Germany | $14.4M | 55 | |
| Lean | MLOps | Open source | San Francisco, United States | — | 54 | |
| M Magical | Artificial Intelligence | Open source | San Francisco, United States | — | 54 | |
| Plane | Project Management | Open source | San Francisco, United States | $4.0M | 53 | |
| Taskade | SpaceTech | Open source | New York, United States | $1.0M | 49 | |
| SageOx | Artificial Intelligence | Open source | Seattle, USA | $15.0M | 47 | |
| AYD | Creator Economy | Open source | San Francisco, United States | — | 44 | |
| Microsoft | Operating System | Open source | Redmond, United States | — | 43 | |
| Joulix AI Technologies | AI Tools & Apps | Open source | San Francisco, Israel | $2.3M | 35 | |
| Readwise Reader | Consumer App | Open source | Raleigh, United States | — | 25 | |
| Sigla | Developer Tools | Open source | — | — | 23 | |
| Unpaper | AI Tools & Apps | Open source | — | — | 23 | |
| Omnivore | Consumer App | Open source · Self-hostable | — | — | 23 | |
| Zotero | Research Tools | Open source · Self-hostable | Fairfax, United States | — | 22 | |
| Recallguru | AI Search Engine | Open source | — | — | 22 | |
| BEBestpractix | Legal | Open source | Tel Aviv, Israel | — | 19 | |
| Cap | Developer Tools | Open source · Self-hostable | San Francisco, United States | — | 19 | |
| Popdocs | Productivity Software | Open source | — | — | 17 | |
| superwhisper | Artificial Intelligence | Open source | New York, United States | — | 17 | |
| I3i3 | Software Development | Open source · Self-hostable | — | — | 13 | |
| Generative AI | Open source | — | — | 10 | ||
| Convo | Voice AI | Open source | San Francisco, United States | — | 10 | |
| EUEuro-Office | Software | Open source · Self-hostable | Europe | — | 10 | |
| EUEurostack | Software | Open source · Self-hostable | Europe | — | 10 | |
| LibreChat | AI | Open source · Self-hostable | New York, United States | — | 10 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| Bnine | Creative Operations | Open source | — | — | 4 | |
| Digicards | Digital Business Cards | Open source | Leicester, England | — | — | |
| AI Agent | Open source | — | — | — | ||
| Fractask | Open Source | Open source · Self-hostable | — | — | — | |
| Stepnews | AI Search Engine | Open source | — | — | — | |
| Generative AI | Open source | — | — | — | ||
| Justemail | AI Search Engine | Open source | — | — | — | |
| Swwitch | Collaboration Platform | Open source | — | — | — | |
| Quores | Workflow Automation | Open source | Stourbridge, England | — | — | |
| Naps2 Software | Document Management | Open source · Self-hostable | — | — | — | |
| Habitapro | Agentic AI | Open source | — | — | — | |
| Thunderbird | Email Client | Open source · Self-hostable | — | — | — | |
| Iamfamily | AI Agent | Open source | — | — | — | |
| Shiftdocs | Document Conversion | Open source | — | — | — | |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — | |
| Htmlslides | Creator Economy | Open source | — | — | — | |
| Personal Knowledge Management | Open source | — | — | — | ||
| Lonze | Developer Tools | Open source | — | — | — | |
| Orcaforge | 3D Printing | Open source · Self-hostable | — | — | — | |
| Portacle | Developer Tools | Open source | — | — | — |